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Finding the Fourth Proportional to 388,566.22, 532,337.58 and 374,004.65

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Solution

The fourth proportional to 388,566.22, 532,337.58 and 374,004.65 is: 512,388.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,566.22 : 532,337.58 = 374,004.65 : x
  2. Step 2: Convert to fraction form
    388,566.22/532,337.58 = 374,004.65/x
  3. Step 3: Cross multiply
    388,566.22x = 532,337.58 × 374,004.65
  4. Step 4: Simplify right side
    388,566.22x = 199,096,730,289.75
  5. Step 5: Solve for x
    x = 199,096,730,289.75/388,566.22
  6. Step 6: Final answer
    x = 512,388.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.