Home / 407,543.28-562,976.76-387,614.16

Finding the Fourth Proportional to 407,543.28, 562,976.76 and 387,614.16

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Solution

The fourth proportional to 407,543.28, 562,976.76 and 387,614.16 is: 535,446.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,543.28 : 562,976.76 = 387,614.16 : x
  2. Step 2: Convert to fraction form
    407,543.28/562,976.76 = 387,614.16/x
  3. Step 3: Cross multiply
    407,543.28x = 562,976.76 × 387,614.16
  4. Step 4: Simplify right side
    407,543.28x = 218,217,763,926.92
  5. Step 5: Solve for x
    x = 218,217,763,926.92/407,543.28
  6. Step 6: Final answer
    x = 535,446.85

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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.