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Finding the Fourth Proportional to 478,269.24, 660,041.42 and 263,409.24

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Solution

The fourth proportional to 478,269.24, 660,041.42 and 263,409.24 is: 363,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,269.24 : 660,041.42 = 263,409.24 : x
  2. Step 2: Convert to fraction form
    478,269.24/660,041.42 = 263,409.24/x
  3. Step 3: Cross multiply
    478,269.24x = 660,041.42 × 263,409.24
  4. Step 4: Simplify right side
    478,269.24x = 173,861,008,810.72
  5. Step 5: Solve for x
    x = 173,861,008,810.72/478,269.24
  6. Step 6: Final answer
    x = 363,521.20

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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.