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Finding the Fourth Proportional to 478,632.65, 660,585.98 and 363,724.02

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Solution

The fourth proportional to 478,632.65, 660,585.98 and 363,724.02 is: 501,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,632.65 : 660,585.98 = 363,724.02 : x
  2. Step 2: Convert to fraction form
    478,632.65/660,585.98 = 363,724.02/x
  3. Step 3: Cross multiply
    478,632.65x = 660,585.98 × 363,724.02
  4. Step 4: Simplify right side
    478,632.65x = 240,270,989,110.55
  5. Step 5: Solve for x
    x = 240,270,989,110.55/478,632.65
  6. Step 6: Final answer
    x = 501,994.57

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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.