Home / 1,225,189.43-1,690,513.65-715,793.39

Finding the Fourth Proportional to 1,225,189.43, 1,690,513.65 and 715,793.39

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Solution

The fourth proportional to 1,225,189.43, 1,690,513.65 and 715,793.39 is: 987,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,189.43 : 1,690,513.65 = 715,793.39 : x
  2. Step 2: Convert to fraction form
    1,225,189.43/1,690,513.65 = 715,793.39/x
  3. Step 3: Cross multiply
    1,225,189.43x = 1,690,513.65 × 715,793.39
  4. Step 4: Simplify right side
    1,225,189.43x = 1,210,058,487,922.21
  5. Step 5: Solve for x
    x = 1,210,058,487,922.21/1,225,189.43
  6. Step 6: Final answer
    x = 987,650.12

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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.