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Finding the Fourth Proportional to 529,308.88, 729,110.63 and 427,048.18

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Solution

The fourth proportional to 529,308.88, 729,110.63 and 427,048.18 is: 588,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,308.88 : 729,110.63 = 427,048.18 : x
  2. Step 2: Convert to fraction form
    529,308.88/729,110.63 = 427,048.18/x
  3. Step 3: Cross multiply
    529,308.88x = 729,110.63 × 427,048.18
  4. Step 4: Simplify right side
    529,308.88x = 311,365,366,805.00
  5. Step 5: Solve for x
    x = 311,365,366,805.00/529,308.88
  6. Step 6: Final answer
    x = 588,248.90

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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.