Home / 991,950.90-1,488,347.55-542,146.29

Finding the Fourth Proportional to 991,950.90, 1,488,347.55 and 542,146.29

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Solution

The fourth proportional to 991,950.90, 1,488,347.55 and 542,146.29 is: 813,449.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,950.90 : 1,488,347.55 = 542,146.29 : x
  2. Step 2: Convert to fraction form
    991,950.90/1,488,347.55 = 542,146.29/x
  3. Step 3: Cross multiply
    991,950.90x = 1,488,347.55 × 542,146.29
  4. Step 4: Simplify right side
    991,950.90x = 806,902,102,463.09
  5. Step 5: Solve for x
    x = 806,902,102,463.09/991,950.90
  6. Step 6: Final answer
    x = 813,449.64

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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.