Home / 900,614.52-1,242,838.58-492,712.20

Finding the Fourth Proportional to 900,614.52, 1,242,838.58 and 492,712.20

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Solution

The fourth proportional to 900,614.52, 1,242,838.58 and 492,712.20 is: 679,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,614.52 : 1,242,838.58 = 492,712.20 : x
  2. Step 2: Convert to fraction form
    900,614.52/1,242,838.58 = 492,712.20/x
  3. Step 3: Cross multiply
    900,614.52x = 1,242,838.58 × 492,712.20
  4. Step 4: Simplify right side
    900,614.52x = 612,361,730,996.68
  5. Step 5: Solve for x
    x = 612,361,730,996.68/900,614.52
  6. Step 6: Final answer
    x = 679,937.66

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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.