Home / 662,566.72-992,596.20-391,884.16

Finding the Fourth Proportional to 662,566.72, 992,596.20 and 391,884.16

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Solution

The fourth proportional to 662,566.72, 992,596.20 and 391,884.16 is: 587,084.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,566.72 : 992,596.20 = 391,884.16 : x
  2. Step 2: Convert to fraction form
    662,566.72/992,596.20 = 391,884.16/x
  3. Step 3: Cross multiply
    662,566.72x = 992,596.20 × 391,884.16
  4. Step 4: Simplify right side
    662,566.72x = 388,982,728,056.19
  5. Step 5: Solve for x
    x = 388,982,728,056.19/662,566.72
  6. Step 6: Final answer
    x = 587,084.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.