Home / 723,763.40-1,085,645.10-303,513.80

Finding the Fourth Proportional to 723,763.40, 1,085,645.10 and 303,513.80

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Solution

The fourth proportional to 723,763.40, 1,085,645.10 and 303,513.80 is: 455,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,763.40 : 1,085,645.10 = 303,513.80 : x
  2. Step 2: Convert to fraction form
    723,763.40/1,085,645.10 = 303,513.80/x
  3. Step 3: Cross multiply
    723,763.40x = 1,085,645.10 × 303,513.80
  4. Step 4: Simplify right side
    723,763.40x = 329,508,269,752.38
  5. Step 5: Solve for x
    x = 329,508,269,752.38/723,763.40
  6. Step 6: Final answer
    x = 455,270.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.