Home / 840,280.13-1,159,600.40-458,306.91

Finding the Fourth Proportional to 840,280.13, 1,159,600.40 and 458,306.91

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Solution

The fourth proportional to 840,280.13, 1,159,600.40 and 458,306.91 is: 632,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,280.13 : 1,159,600.40 = 458,306.91 : x
  2. Step 2: Convert to fraction form
    840,280.13/1,159,600.40 = 458,306.91/x
  3. Step 3: Cross multiply
    840,280.13x = 1,159,600.40 × 458,306.91
  4. Step 4: Simplify right side
    840,280.13x = 531,452,873,867.23
  5. Step 5: Solve for x
    x = 531,452,873,867.23/840,280.13
  6. Step 6: Final answer
    x = 632,471.07

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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.