Home / 755,838-1,043,921.52-513,712.80

Finding the Fourth Proportional to 755,838, 1,043,921.52 and 513,712.80

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Solution

The fourth proportional to 755,838, 1,043,921.52 and 513,712.80 is: 709,511.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,838 : 1,043,921.52 = 513,712.80 : x
  2. Step 2: Convert to fraction form
    755,838/1,043,921.52 = 513,712.80/x
  3. Step 3: Cross multiply
    755,838x = 1,043,921.52 × 513,712.80
  4. Step 4: Simplify right side
    755,838x = 536,275,847,019.46
  5. Step 5: Solve for x
    x = 536,275,847,019.46/755,838
  6. Step 6: Final answer
    x = 709,511.62

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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.