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Finding the Fourth Proportional to 472,114.80, 709,921.80 and 395,132.40

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Solution

The fourth proportional to 472,114.80, 709,921.80 and 395,132.40 is: 594,162.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,114.80 : 709,921.80 = 395,132.40 : x
  2. Step 2: Convert to fraction form
    472,114.80/709,921.80 = 395,132.40/x
  3. Step 3: Cross multiply
    472,114.80x = 709,921.80 × 395,132.40
  4. Step 4: Simplify right side
    472,114.80x = 280,513,104,646.32
  5. Step 5: Solve for x
    x = 280,513,104,646.32/472,114.80
  6. Step 6: Final answer
    x = 594,162.91

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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.