Home / 1,225,098.94-1,690,387.55-715,702.90

Finding the Fourth Proportional to 1,225,098.94, 1,690,387.55 and 715,702.90

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Solution

The fourth proportional to 1,225,098.94, 1,690,387.55 and 715,702.90 is: 987,524.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,098.94 : 1,690,387.55 = 715,702.90 : x
  2. Step 2: Convert to fraction form
    1,225,098.94/1,690,387.55 = 715,702.90/x
  3. Step 3: Cross multiply
    1,225,098.94x = 1,690,387.55 × 715,702.90
  4. Step 4: Simplify right side
    1,225,098.94x = 1,209,815,263,206.96
  5. Step 5: Solve for x
    x = 1,209,815,263,206.96/1,225,098.94
  6. Step 6: Final answer
    x = 987,524.54

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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.