Home / 398,631.20-597,946.80-359,265.20

Finding the Fourth Proportional to 398,631.20, 597,946.80 and 359,265.20

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Solution

The fourth proportional to 398,631.20, 597,946.80 and 359,265.20 is: 538,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,631.20 : 597,946.80 = 359,265.20 : x
  2. Step 2: Convert to fraction form
    398,631.20/597,946.80 = 359,265.20/x
  3. Step 3: Cross multiply
    398,631.20x = 597,946.80 × 359,265.20
  4. Step 4: Simplify right side
    398,631.20x = 214,821,476,691.36
  5. Step 5: Solve for x
    x = 214,821,476,691.36/398,631.20
  6. Step 6: Final answer
    x = 538,897.80

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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.