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Finding the Fourth Proportional to 529,062.24, 730,111.17 and 287,347.08

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Solution

The fourth proportional to 529,062.24, 730,111.17 and 287,347.08 is: 396,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,062.24 : 730,111.17 = 287,347.08 : x
  2. Step 2: Convert to fraction form
    529,062.24/730,111.17 = 287,347.08/x
  3. Step 3: Cross multiply
    529,062.24x = 730,111.17 × 287,347.08
  4. Step 4: Simplify right side
    529,062.24x = 209,795,312,774.88
  5. Step 5: Solve for x
    x = 209,795,312,774.88/529,062.24
  6. Step 6: Final answer
    x = 396,541.84

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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.