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Finding the Fourth Proportional to 552,708.45, 829,062.68 and 487,390.05

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Solution

The fourth proportional to 552,708.45, 829,062.68 and 487,390.05 is: 731,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,708.45 : 829,062.68 = 487,390.05 : x
  2. Step 2: Convert to fraction form
    552,708.45/829,062.68 = 487,390.05/x
  3. Step 3: Cross multiply
    552,708.45x = 829,062.68 × 487,390.05
  4. Step 4: Simplify right side
    552,708.45x = 404,076,898,621.38
  5. Step 5: Solve for x
    x = 404,076,898,621.38/552,708.45
  6. Step 6: Final answer
    x = 731,085.08

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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.