Home / 723,404.70-1,085,625.45-407,526.30

Finding the Fourth Proportional to 723,404.70, 1,085,625.45 and 407,526.30

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Solution

The fourth proportional to 723,404.70, 1,085,625.45 and 407,526.30 is: 611,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,404.70 : 1,085,625.45 = 407,526.30 : x
  2. Step 2: Convert to fraction form
    723,404.70/1,085,625.45 = 407,526.30/x
  3. Step 3: Cross multiply
    723,404.70x = 1,085,625.45 × 407,526.30
  4. Step 4: Simplify right side
    723,404.70x = 442,420,922,824.34
  5. Step 5: Solve for x
    x = 442,420,922,824.34/723,404.70
  6. Step 6: Final answer
    x = 611,581.49

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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.