Home / 865,720.35-1,298,580.53-718,264.35

Finding the Fourth Proportional to 865,720.35, 1,298,580.53 and 718,264.35

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Solution

The fourth proportional to 865,720.35, 1,298,580.53 and 718,264.35 is: 1,077,396.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,720.35 : 1,298,580.53 = 718,264.35 : x
  2. Step 2: Convert to fraction form
    865,720.35/1,298,580.53 = 718,264.35/x
  3. Step 3: Cross multiply
    865,720.35x = 1,298,580.53 × 718,264.35
  4. Step 4: Simplify right side
    865,720.35x = 932,724,096,711.78
  5. Step 5: Solve for x
    x = 932,724,096,711.78/865,720.35
  6. Step 6: Final answer
    x = 1,077,396.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.