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Finding the Fourth Proportional to 487,532.60, 730,424.10 and 417,548.60

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Solution

The fourth proportional to 487,532.60, 730,424.10 and 417,548.60 is: 625,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,532.60 : 730,424.10 = 417,548.60 : x
  2. Step 2: Convert to fraction form
    487,532.60/730,424.10 = 417,548.60/x
  3. Step 3: Cross multiply
    487,532.60x = 730,424.10 × 417,548.60
  4. Step 4: Simplify right side
    487,532.60x = 304,987,560,361.26
  5. Step 5: Solve for x
    x = 304,987,560,361.26/487,532.60
  6. Step 6: Final answer
    x = 625,573.68

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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.