Home / 739,453.83-1,020,446.28-399,922.08

Finding the Fourth Proportional to 739,453.83, 1,020,446.28 and 399,922.08

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Solution

The fourth proportional to 739,453.83, 1,020,446.28 and 399,922.08 is: 551,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,453.83 : 1,020,446.28 = 399,922.08 : x
  2. Step 2: Convert to fraction form
    739,453.83/1,020,446.28 = 399,922.08/x
  3. Step 3: Cross multiply
    739,453.83x = 1,020,446.28 × 399,922.08
  4. Step 4: Simplify right side
    739,453.83x = 408,098,998,825.86
  5. Step 5: Solve for x
    x = 408,098,998,825.86/739,453.83
  6. Step 6: Final answer
    x = 551,892.47

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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.