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Finding the Fourth Proportional to 835,051.92, 1,150,780.68 and 819,697.20

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Solution

The fourth proportional to 835,051.92, 1,150,780.68 and 819,697.20 is: 1,129,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,051.92 : 1,150,780.68 = 819,697.20 : x
  2. Step 2: Convert to fraction form
    835,051.92/1,150,780.68 = 819,697.20/x
  3. Step 3: Cross multiply
    835,051.92x = 1,150,780.68 × 819,697.20
  4. Step 4: Simplify right side
    835,051.92x = 943,291,701,210.10
  5. Step 5: Solve for x
    x = 943,291,701,210.10/835,051.92
  6. Step 6: Final answer
    x = 1,129,620.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.