Home / 876,127.20-1,312,635.60-543,314.40

Finding the Fourth Proportional to 876,127.20, 1,312,635.60 and 543,314.40

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Solution

The fourth proportional to 876,127.20, 1,312,635.60 and 543,314.40 is: 814,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,127.20 : 1,312,635.60 = 543,314.40 : x
  2. Step 2: Convert to fraction form
    876,127.20/1,312,635.60 = 543,314.40/x
  3. Step 3: Cross multiply
    876,127.20x = 1,312,635.60 × 543,314.40
  4. Step 4: Simplify right side
    876,127.20x = 713,173,823,432.64
  5. Step 5: Solve for x
    x = 713,173,823,432.64/876,127.20
  6. Step 6: Final answer
    x = 814,007.17

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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.