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Finding the Fourth Proportional to 478,988.92, 660,989.58 and 264,138.04

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Solution

The fourth proportional to 478,988.92, 660,989.58 and 264,138.04 is: 364,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,988.92 : 660,989.58 = 264,138.04 : x
  2. Step 2: Convert to fraction form
    478,988.92/660,989.58 = 264,138.04/x
  3. Step 3: Cross multiply
    478,988.92x = 660,989.58 × 264,138.04
  4. Step 4: Simplify right side
    478,988.92x = 174,592,492,121.62
  5. Step 5: Solve for x
    x = 174,592,492,121.62/478,988.92
  6. Step 6: Final answer
    x = 364,502.15

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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.