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Finding the Fourth Proportional to 487,945.80, 730,493.10 and 347,977.80

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Solution

The fourth proportional to 487,945.80, 730,493.10 and 347,977.80 is: 520,950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,945.80 : 730,493.10 = 347,977.80 : x
  2. Step 2: Convert to fraction form
    487,945.80/730,493.10 = 347,977.80/x
  3. Step 3: Cross multiply
    487,945.80x = 730,493.10 × 347,977.80
  4. Step 4: Simplify right side
    487,945.80x = 254,195,381,853.18
  5. Step 5: Solve for x
    x = 254,195,381,853.18/487,945.80
  6. Step 6: Final answer
    x = 520,950.04

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.