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Finding the Fourth Proportional to 474,140.60, 709,461.30 and 432,150.20

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Solution

The fourth proportional to 474,140.60, 709,461.30 and 432,150.20 is: 646,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,140.60 : 709,461.30 = 432,150.20 : x
  2. Step 2: Convert to fraction form
    474,140.60/709,461.30 = 432,150.20/x
  3. Step 3: Cross multiply
    474,140.60x = 709,461.30 × 432,150.20
  4. Step 4: Simplify right side
    474,140.60x = 306,593,842,687.26
  5. Step 5: Solve for x
    x = 306,593,842,687.26/474,140.60
  6. Step 6: Final answer
    x = 646,630.65

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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.