Home / 1,587,264.49-2,190,440.91-862,126.39

Finding the Fourth Proportional to 1,587,264.49, 2,190,440.91 and 862,126.39

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Solution

The fourth proportional to 1,587,264.49, 2,190,440.91 and 862,126.39 is: 1,189,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,264.49 : 2,190,440.91 = 862,126.39 : x
  2. Step 2: Convert to fraction form
    1,587,264.49/2,190,440.91 = 862,126.39/x
  3. Step 3: Cross multiply
    1,587,264.49x = 2,190,440.91 × 862,126.39
  4. Step 4: Simplify right side
    1,587,264.49x = 1,888,436,914,246.62
  5. Step 5: Solve for x
    x = 1,888,436,914,246.62/1,587,264.49
  6. Step 6: Final answer
    x = 1,189,743.06

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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.