Home / 708,401.70-1,062,602.55-287,979.30

Finding the Fourth Proportional to 708,401.70, 1,062,602.55 and 287,979.30

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Solution

The fourth proportional to 708,401.70, 1,062,602.55 and 287,979.30 is: 431,968.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,401.70 : 1,062,602.55 = 287,979.30 : x
  2. Step 2: Convert to fraction form
    708,401.70/1,062,602.55 = 287,979.30/x
  3. Step 3: Cross multiply
    708,401.70x = 1,062,602.55 × 287,979.30
  4. Step 4: Simplify right side
    708,401.70x = 306,007,538,527.22
  5. Step 5: Solve for x
    x = 306,007,538,527.22/708,401.70
  6. Step 6: Final answer
    x = 431,968.95

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Similar ratio
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1.5x scale

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.