Home / 651,034.20-974,996.10-399,091.80

Finding the Fourth Proportional to 651,034.20, 974,996.10 and 399,091.80

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Solution

The fourth proportional to 651,034.20, 974,996.10 and 399,091.80 is: 597,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,034.20 : 974,996.10 = 399,091.80 : x
  2. Step 2: Convert to fraction form
    651,034.20/974,996.10 = 399,091.80/x
  3. Step 3: Cross multiply
    651,034.20x = 974,996.10 × 399,091.80
  4. Step 4: Simplify right side
    651,034.20x = 389,112,948,541.98
  5. Step 5: Solve for x
    x = 389,112,948,541.98/651,034.20
  6. Step 6: Final answer
    x = 597,684.34

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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.