Home / 491,987-738,213.76-292,701.08

Finding the Fourth Proportional to 491,987, 738,213.76 and 292,701.08

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Solution

The fourth proportional to 491,987, 738,213.76 and 292,701.08 is: 439,190.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,987 : 738,213.76 = 292,701.08 : x
  2. Step 2: Convert to fraction form
    491,987/738,213.76 = 292,701.08/x
  3. Step 3: Cross multiply
    491,987x = 738,213.76 × 292,701.08
  4. Step 4: Simplify right side
    491,987x = 216,075,964,822.86
  5. Step 5: Solve for x
    x = 216,075,964,822.86/491,987
  6. Step 6: Final answer
    x = 439,190.39

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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.