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Finding the Fourth Proportional to 472,560, 709,048.80 and 247,866.72

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Solution

The fourth proportional to 472,560, 709,048.80 and 247,866.72 is: 371,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,560 : 709,048.80 = 247,866.72 : x
  2. Step 2: Convert to fraction form
    472,560/709,048.80 = 247,866.72/x
  3. Step 3: Cross multiply
    472,560x = 709,048.80 × 247,866.72
  4. Step 4: Simplify right side
    472,560x = 175,749,600,375.94
  5. Step 5: Solve for x
    x = 175,749,600,375.94/472,560
  6. Step 6: Final answer
    x = 371,909.60

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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.