Home / 747,800.18-1,121,465-242,243.86

Finding the Fourth Proportional to 747,800.18, 1,121,465 and 242,243.86

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Solution

The fourth proportional to 747,800.18, 1,121,465 and 242,243.86 is: 363,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,800.18 : 1,121,465 = 242,243.86 : x
  2. Step 2: Convert to fraction form
    747,800.18/1,121,465 = 242,243.86/x
  3. Step 3: Cross multiply
    747,800.18x = 1,121,465 × 242,243.86
  4. Step 4: Simplify right side
    747,800.18x = 271,668,010,454.90
  5. Step 5: Solve for x
    x = 271,668,010,454.90/747,800.18
  6. Step 6: Final answer
    x = 363,289.58

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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.