Home / 1,074,385.40-1,609,634.10-851,214.20

Finding the Fourth Proportional to 1,074,385.40, 1,609,634.10 and 851,214.20

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Solution

The fourth proportional to 1,074,385.40, 1,609,634.10 and 851,214.20 is: 1,275,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,385.40 : 1,609,634.10 = 851,214.20 : x
  2. Step 2: Convert to fraction form
    1,074,385.40/1,609,634.10 = 851,214.20/x
  3. Step 3: Cross multiply
    1,074,385.40x = 1,609,634.10 × 851,214.20
  4. Step 4: Simplify right side
    1,074,385.40x = 1,370,143,402,724.22
  5. Step 5: Solve for x
    x = 1,370,143,402,724.22/1,074,385.40
  6. Step 6: Final answer
    x = 1,275,281.11

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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.