Home / 474,138.60-709,458.30-432,148.20

Finding the Fourth Proportional to 474,138.60, 709,458.30 and 432,148.20

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Solution

The fourth proportional to 474,138.60, 709,458.30 and 432,148.20 is: 646,627.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,138.60 : 709,458.30 = 432,148.20 : x
  2. Step 2: Convert to fraction form
    474,138.60/709,458.30 = 432,148.20/x
  3. Step 3: Cross multiply
    474,138.60x = 709,458.30 × 432,148.20
  4. Step 4: Simplify right side
    474,138.60x = 306,591,127,320.06
  5. Step 5: Solve for x
    x = 306,591,127,320.06/474,138.60
  6. Step 6: Final answer
    x = 646,627.65

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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.