Home / 840,814.38-1,160,348.49-458,865.72

Finding the Fourth Proportional to 840,814.38, 1,160,348.49 and 458,865.72

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Solution

The fourth proportional to 840,814.38, 1,160,348.49 and 458,865.72 is: 633,248.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,814.38 : 1,160,348.49 = 458,865.72 : x
  2. Step 2: Convert to fraction form
    840,814.38/1,160,348.49 = 458,865.72/x
  3. Step 3: Cross multiply
    840,814.38x = 1,160,348.49 × 458,865.72
  4. Step 4: Simplify right side
    840,814.38x = 532,444,145,314.76
  5. Step 5: Solve for x
    x = 532,444,145,314.76/840,814.38
  6. Step 6: Final answer
    x = 633,248.14

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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.