Home / 724,671.06-1,086,434.91-457,869.30

Finding the Fourth Proportional to 724,671.06, 1,086,434.91 and 457,869.30

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Solution

The fourth proportional to 724,671.06, 1,086,434.91 and 457,869.30 is: 686,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,671.06 : 1,086,434.91 = 457,869.30 : x
  2. Step 2: Convert to fraction form
    724,671.06/1,086,434.91 = 457,869.30/x
  3. Step 3: Cross multiply
    724,671.06x = 1,086,434.91 × 457,869.30
  4. Step 4: Simplify right side
    724,671.06x = 497,445,191,737.26
  5. Step 5: Solve for x
    x = 497,445,191,737.26/724,671.06
  6. Step 6: Final answer
    x = 686,442.75

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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.