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Finding the Fourth Proportional to 714,630.52, 986,651.58 and 442,987.30

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Solution

The fourth proportional to 714,630.52, 986,651.58 and 442,987.30 is: 611,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,630.52 : 986,651.58 = 442,987.30 : x
  2. Step 2: Convert to fraction form
    714,630.52/986,651.58 = 442,987.30/x
  3. Step 3: Cross multiply
    714,630.52x = 986,651.58 × 442,987.30
  4. Step 4: Simplify right side
    714,630.52x = 437,074,119,464.93
  5. Step 5: Solve for x
    x = 437,074,119,464.93/714,630.52
  6. Step 6: Final answer
    x = 611,608.53

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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.