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Finding the Fourth Proportional to 478,601.20, 660,468.28 and 263,741.20

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Solution

The fourth proportional to 478,601.20, 660,468.28 and 263,741.20 is: 363,962.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,601.20 : 660,468.28 = 263,741.20 : x
  2. Step 2: Convert to fraction form
    478,601.20/660,468.28 = 263,741.20/x
  3. Step 3: Cross multiply
    478,601.20x = 660,468.28 × 263,741.20
  4. Step 4: Simplify right side
    478,601.20x = 174,192,696,729.14
  5. Step 5: Solve for x
    x = 174,192,696,729.14/478,601.20
  6. Step 6: Final answer
    x = 363,962.10

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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.