Home / 838,070.25-1,156,335.26-493,919.88

Finding the Fourth Proportional to 838,070.25, 1,156,335.26 and 493,919.88

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Solution

The fourth proportional to 838,070.25, 1,156,335.26 and 493,919.88 is: 681,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,070.25 : 1,156,335.26 = 493,919.88 : x
  2. Step 2: Convert to fraction form
    838,070.25/1,156,335.26 = 493,919.88/x
  3. Step 3: Cross multiply
    838,070.25x = 1,156,335.26 × 493,919.88
  4. Step 4: Simplify right side
    838,070.25x = 571,136,970,389.37
  5. Step 5: Solve for x
    x = 571,136,970,389.37/838,070.25
  6. Step 6: Final answer
    x = 681,490.57

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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.