Home / 1,172,641.05-1,618,250.64-663,332.49

Finding the Fourth Proportional to 1,172,641.05, 1,618,250.64 and 663,332.49

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Solution

The fourth proportional to 1,172,641.05, 1,618,250.64 and 663,332.49 is: 915,402.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,641.05 : 1,618,250.64 = 663,332.49 : x
  2. Step 2: Convert to fraction form
    1,172,641.05/1,618,250.64 = 663,332.49/x
  3. Step 3: Cross multiply
    1,172,641.05x = 1,618,250.64 × 663,332.49
  4. Step 4: Simplify right side
    1,172,641.05x = 1,073,438,226,475.29
  5. Step 5: Solve for x
    x = 1,073,438,226,475.29/1,172,641.05
  6. Step 6: Final answer
    x = 915,402.23

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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.