Home / 900,333.30-1,242,442.47-492,433.95

Finding the Fourth Proportional to 900,333.30, 1,242,442.47 and 492,433.95

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Solution

The fourth proportional to 900,333.30, 1,242,442.47 and 492,433.95 is: 679,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,333.30 : 1,242,442.47 = 492,433.95 : x
  2. Step 2: Convert to fraction form
    900,333.30/1,242,442.47 = 492,433.95/x
  3. Step 3: Cross multiply
    900,333.30x = 1,242,442.47 × 492,433.95
  4. Step 4: Simplify right side
    900,333.30x = 611,820,853,149.86
  5. Step 5: Solve for x
    x = 611,820,853,149.86/900,333.30
  6. Step 6: Final answer
    x = 679,549.29

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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.