Home / 478,981.64-660,997.20-264,117.80

Finding the Fourth Proportional to 478,981.64, 660,997.20 and 264,117.80

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Solution

The fourth proportional to 478,981.64, 660,997.20 and 264,117.80 is: 364,483.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,981.64 : 660,997.20 = 264,117.80 : x
  2. Step 2: Convert to fraction form
    478,981.64/660,997.20 = 264,117.80/x
  3. Step 3: Cross multiply
    478,981.64x = 660,997.20 × 264,117.80
  4. Step 4: Simplify right side
    478,981.64x = 174,581,126,270.16
  5. Step 5: Solve for x
    x = 174,581,126,270.16/478,981.64
  6. Step 6: Final answer
    x = 364,483.96

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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.