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Finding the Fourth Proportional to 544,319.80, 814,703.03 and 400,187.45

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Solution

The fourth proportional to 544,319.80, 814,703.03 and 400,187.45 is: 598,974.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,319.80 : 814,703.03 = 400,187.45 : x
  2. Step 2: Convert to fraction form
    544,319.80/814,703.03 = 400,187.45/x
  3. Step 3: Cross multiply
    544,319.80x = 814,703.03 × 400,187.45
  4. Step 4: Simplify right side
    544,319.80x = 326,033,922,008.52
  5. Step 5: Solve for x
    x = 326,033,922,008.52/544,319.80
  6. Step 6: Final answer
    x = 598,974.95

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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.