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Finding the Fourth Proportional to 478,130.85, 660,492.23 and 452,936.61

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Solution

The fourth proportional to 478,130.85, 660,492.23 and 452,936.61 is: 625,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,130.85 : 660,492.23 = 452,936.61 : x
  2. Step 2: Convert to fraction form
    478,130.85/660,492.23 = 452,936.61/x
  3. Step 3: Cross multiply
    478,130.85x = 660,492.23 × 452,936.61
  4. Step 4: Simplify right side
    478,130.85x = 299,161,109,322.86
  5. Step 5: Solve for x
    x = 299,161,109,322.86/478,130.85
  6. Step 6: Final answer
    x = 625,688.78

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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.