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Finding the Fourth Proportional to 723,781.90, 998,715.58 and 433,323.87

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Solution

The fourth proportional to 723,781.90, 998,715.58 and 433,323.87 is: 597,925.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,781.90 : 998,715.58 = 433,323.87 : x
  2. Step 2: Convert to fraction form
    723,781.90/998,715.58 = 433,323.87/x
  3. Step 3: Cross multiply
    723,781.90x = 998,715.58 × 433,323.87
  4. Step 4: Simplify right side
    723,781.90x = 432,767,300,154.90
  5. Step 5: Solve for x
    x = 432,767,300,154.90/723,781.90
  6. Step 6: Final answer
    x = 597,925.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.