Home / 663,789.60-916,084.08-377,399.52

Finding the Fourth Proportional to 663,789.60, 916,084.08 and 377,399.52

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Solution

The fourth proportional to 663,789.60, 916,084.08 and 377,399.52 is: 520,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,789.60 : 916,084.08 = 377,399.52 : x
  2. Step 2: Convert to fraction form
    663,789.60/916,084.08 = 377,399.52/x
  3. Step 3: Cross multiply
    663,789.60x = 916,084.08 × 377,399.52
  4. Step 4: Simplify right side
    663,789.60x = 345,729,692,071.64
  5. Step 5: Solve for x
    x = 345,729,692,071.64/663,789.60
  6. Step 6: Final answer
    x = 520,842.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.