Home / 840,978.84-1,160,542.44-459,002.28

Finding the Fourth Proportional to 840,978.84, 1,160,542.44 and 459,002.28

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Solution

The fourth proportional to 840,978.84, 1,160,542.44 and 459,002.28 is: 633,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,978.84 : 1,160,542.44 = 459,002.28 : x
  2. Step 2: Convert to fraction form
    840,978.84/1,160,542.44 = 459,002.28/x
  3. Step 3: Cross multiply
    840,978.84x = 1,160,542.44 × 459,002.28
  4. Step 4: Simplify right side
    840,978.84x = 532,691,625,996.76
  5. Step 5: Solve for x
    x = 532,691,625,996.76/840,978.84
  6. Step 6: Final answer
    x = 633,418.58

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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.