Home / 1,260,749.80-1,891,124.70-513,332.20

Finding the Fourth Proportional to 1,260,749.80, 1,891,124.70 and 513,332.20

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Solution

The fourth proportional to 1,260,749.80, 1,891,124.70 and 513,332.20 is: 769,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,749.80 : 1,891,124.70 = 513,332.20 : x
  2. Step 2: Convert to fraction form
    1,260,749.80/1,891,124.70 = 513,332.20/x
  3. Step 3: Cross multiply
    1,260,749.80x = 1,891,124.70 × 513,332.20
  4. Step 4: Simplify right side
    1,260,749.80x = 970,775,202,725.34
  5. Step 5: Solve for x
    x = 970,775,202,725.34/1,260,749.80
  6. Step 6: Final answer
    x = 769,998.30

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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.