Home / 1,108,995.40-1,663,493.10-435,107.80

Finding the Fourth Proportional to 1,108,995.40, 1,663,493.10 and 435,107.80

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Solution

The fourth proportional to 1,108,995.40, 1,663,493.10 and 435,107.80 is: 652,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,995.40 : 1,663,493.10 = 435,107.80 : x
  2. Step 2: Convert to fraction form
    1,108,995.40/1,663,493.10 = 435,107.80/x
  3. Step 3: Cross multiply
    1,108,995.40x = 1,663,493.10 × 435,107.80
  4. Step 4: Simplify right side
    1,108,995.40x = 723,798,823,056.18
  5. Step 5: Solve for x
    x = 723,798,823,056.18/1,108,995.40
  6. Step 6: Final answer
    x = 652,661.70

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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.