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Finding the Fourth Proportional to 632,803.52, 873,491.04 and 391,271.36

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Solution

The fourth proportional to 632,803.52, 873,491.04 and 391,271.36 is: 540,091.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,803.52 : 873,491.04 = 391,271.36 : x
  2. Step 2: Convert to fraction form
    632,803.52/873,491.04 = 391,271.36/x
  3. Step 3: Cross multiply
    632,803.52x = 873,491.04 × 391,271.36
  4. Step 4: Simplify right side
    632,803.52x = 341,772,027,168.61
  5. Step 5: Solve for x
    x = 341,772,027,168.61/632,803.52
  6. Step 6: Final answer
    x = 540,091.86

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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.