Home / 842,316.62-1,262,969.20-386,336.66

Finding the Fourth Proportional to 842,316.62, 1,262,969.20 and 386,336.66

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Solution

The fourth proportional to 842,316.62, 1,262,969.20 and 386,336.66 is: 579,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,316.62 : 1,262,969.20 = 386,336.66 : x
  2. Step 2: Convert to fraction form
    842,316.62/1,262,969.20 = 386,336.66/x
  3. Step 3: Cross multiply
    842,316.62x = 1,262,969.20 × 386,336.66
  4. Step 4: Simplify right side
    842,316.62x = 487,931,304,602.45
  5. Step 5: Solve for x
    x = 487,931,304,602.45/842,316.62
  6. Step 6: Final answer
    x = 579,273.04

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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.