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Finding the Fourth Proportional to 646,376.24, 891,165.42 and 529,655.72

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Solution

The fourth proportional to 646,376.24, 891,165.42 and 529,655.72 is: 730,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,376.24 : 891,165.42 = 529,655.72 : x
  2. Step 2: Convert to fraction form
    646,376.24/891,165.42 = 529,655.72/x
  3. Step 3: Cross multiply
    646,376.24x = 891,165.42 × 529,655.72
  4. Step 4: Simplify right side
    646,376.24x = 472,010,862,169.20
  5. Step 5: Solve for x
    x = 472,010,862,169.20/646,376.24
  6. Step 6: Final answer
    x = 730,241.67

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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.