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Finding the Fourth Proportional to 576,742.49, 864,361.25 and 417,355.29

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Solution

The fourth proportional to 576,742.49, 864,361.25 and 417,355.29 is: 625,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,742.49 : 864,361.25 = 417,355.29 : x
  2. Step 2: Convert to fraction form
    576,742.49/864,361.25 = 417,355.29/x
  3. Step 3: Cross multiply
    576,742.49x = 864,361.25 × 417,355.29
  4. Step 4: Simplify right side
    576,742.49x = 360,745,736,395.46
  5. Step 5: Solve for x
    x = 360,745,736,395.46/576,742.49
  6. Step 6: Final answer
    x = 625,488.40

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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.