Home / 531,320.50-797,442.18-278,780.32

Finding the Fourth Proportional to 531,320.50, 797,442.18 and 278,780.32

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Solution

The fourth proportional to 531,320.50, 797,442.18 and 278,780.32 is: 418,412.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,320.50 : 797,442.18 = 278,780.32 : x
  2. Step 2: Convert to fraction form
    531,320.50/797,442.18 = 278,780.32/x
  3. Step 3: Cross multiply
    531,320.50x = 797,442.18 × 278,780.32
  4. Step 4: Simplify right side
    531,320.50x = 222,311,186,121.90
  5. Step 5: Solve for x
    x = 222,311,186,121.90/531,320.50
  6. Step 6: Final answer
    x = 418,412.59

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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.