Home / 782,947.62-1,080,401.76-434,097.36

Finding the Fourth Proportional to 782,947.62, 1,080,401.76 and 434,097.36

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Solution

The fourth proportional to 782,947.62, 1,080,401.76 and 434,097.36 is: 599,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,947.62 : 1,080,401.76 = 434,097.36 : x
  2. Step 2: Convert to fraction form
    782,947.62/1,080,401.76 = 434,097.36/x
  3. Step 3: Cross multiply
    782,947.62x = 1,080,401.76 × 434,097.36
  4. Step 4: Simplify right side
    782,947.62x = 468,999,551,755.35
  5. Step 5: Solve for x
    x = 468,999,551,755.35/782,947.62
  6. Step 6: Final answer
    x = 599,017.79

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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.