Home / 1,200,359.86-1,656,473.32-656,493.92

Finding the Fourth Proportional to 1,200,359.86, 1,656,473.32 and 656,493.92

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Solution

The fourth proportional to 1,200,359.86, 1,656,473.32 and 656,493.92 is: 905,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,359.86 : 1,656,473.32 = 656,493.92 : x
  2. Step 2: Convert to fraction form
    1,200,359.86/1,656,473.32 = 656,493.92/x
  3. Step 3: Cross multiply
    1,200,359.86x = 1,656,473.32 × 656,493.92
  4. Step 4: Simplify right side
    1,200,359.86x = 1,087,464,663,222.21
  5. Step 5: Solve for x
    x = 1,087,464,663,222.21/1,200,359.86
  6. Step 6: Final answer
    x = 905,948.87

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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.