Home / 991,860.45-1,486,545.45-536,433.53

Finding the Fourth Proportional to 991,860.45, 1,486,545.45 and 536,433.53

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Solution

The fourth proportional to 991,860.45, 1,486,545.45 and 536,433.53 is: 803,976.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,860.45 : 1,486,545.45 = 536,433.53 : x
  2. Step 2: Convert to fraction form
    991,860.45/1,486,545.45 = 536,433.53/x
  3. Step 3: Cross multiply
    991,860.45x = 1,486,545.45 × 536,433.53
  4. Step 4: Simplify right side
    991,860.45x = 797,432,828,306.39
  5. Step 5: Solve for x
    x = 797,432,828,306.39/991,860.45
  6. Step 6: Final answer
    x = 803,976.84

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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.