Home / 724,272.60-1,086,603.30-645,929.40

Finding the Fourth Proportional to 724,272.60, 1,086,603.30 and 645,929.40

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Solution

The fourth proportional to 724,272.60, 1,086,603.30 and 645,929.40 is: 969,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,272.60 : 1,086,603.30 = 645,929.40 : x
  2. Step 2: Convert to fraction form
    724,272.60/1,086,603.30 = 645,929.40/x
  3. Step 3: Cross multiply
    724,272.60x = 1,086,603.30 × 645,929.40
  4. Step 4: Simplify right side
    724,272.60x = 701,869,017,607.02
  5. Step 5: Solve for x
    x = 701,869,017,607.02/724,272.60
  6. Step 6: Final answer
    x = 969,067.47

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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.