Home / 1,351,275.72-1,864,755.42-731,078.86

Finding the Fourth Proportional to 1,351,275.72, 1,864,755.42 and 731,078.86

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Solution

The fourth proportional to 1,351,275.72, 1,864,755.42 and 731,078.86 is: 1,008,886.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,275.72 : 1,864,755.42 = 731,078.86 : x
  2. Step 2: Convert to fraction form
    1,351,275.72/1,864,755.42 = 731,078.86/x
  3. Step 3: Cross multiply
    1,351,275.72x = 1,864,755.42 × 731,078.86
  4. Step 4: Simplify right side
    1,351,275.72x = 1,363,283,266,632.42
  5. Step 5: Solve for x
    x = 1,363,283,266,632.42/1,351,275.72
  6. Step 6: Final answer
    x = 1,008,886.08

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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.