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Finding the Fourth Proportional to 702,396.90, 1,052,040.15 and 577,980.90

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Solution

The fourth proportional to 702,396.90, 1,052,040.15 and 577,980.90 is: 865,691.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,396.90 : 1,052,040.15 = 577,980.90 : x
  2. Step 2: Convert to fraction form
    702,396.90/1,052,040.15 = 577,980.90/x
  3. Step 3: Cross multiply
    702,396.90x = 1,052,040.15 × 577,980.90
  4. Step 4: Simplify right side
    702,396.90x = 608,059,112,733.14
  5. Step 5: Solve for x
    x = 608,059,112,733.14/702,396.90
  6. Step 6: Final answer
    x = 865,691.62

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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.