Home / 651,731.27-899,220.29-393,404.04

Finding the Fourth Proportional to 651,731.27, 899,220.29 and 393,404.04

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Solution

The fourth proportional to 651,731.27, 899,220.29 and 393,404.04 is: 542,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,731.27 : 899,220.29 = 393,404.04 : x
  2. Step 2: Convert to fraction form
    651,731.27/899,220.29 = 393,404.04/x
  3. Step 3: Cross multiply
    651,731.27x = 899,220.29 × 393,404.04
  4. Step 4: Simplify right side
    651,731.27x = 353,756,892,968.95
  5. Step 5: Solve for x
    x = 353,756,892,968.95/651,731.27
  6. Step 6: Final answer
    x = 542,795.65

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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.