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Finding the Fourth Proportional to 478,350.80, 660,116.04 and 263,510.96

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Solution

The fourth proportional to 478,350.80, 660,116.04 and 263,510.96 is: 363,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,350.80 : 660,116.04 = 263,510.96 : x
  2. Step 2: Convert to fraction form
    478,350.80/660,116.04 = 263,510.96/x
  3. Step 3: Cross multiply
    478,350.80x = 660,116.04 × 263,510.96
  4. Step 4: Simplify right side
    478,350.80x = 173,947,811,411.80
  5. Step 5: Solve for x
    x = 173,947,811,411.80/478,350.80
  6. Step 6: Final answer
    x = 363,640.68

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1.5x scale

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.