Home / 991,860.95-1,486,546.20-536,434.04

Finding the Fourth Proportional to 991,860.95, 1,486,546.20 and 536,434.04

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Solution

The fourth proportional to 991,860.95, 1,486,546.20 and 536,434.04 is: 803,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,860.95 : 1,486,546.20 = 536,434.04 : x
  2. Step 2: Convert to fraction form
    991,860.95/1,486,546.20 = 536,434.04/x
  3. Step 3: Cross multiply
    991,860.95x = 1,486,546.20 × 536,434.04
  4. Step 4: Simplify right side
    991,860.95x = 797,433,976,279.92
  5. Step 5: Solve for x
    x = 797,433,976,279.92/991,860.95
  6. Step 6: Final answer
    x = 803,977.59

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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.