Home / 820,246.12-1,232,117.82-772,306.60

Finding the Fourth Proportional to 820,246.12, 1,232,117.82 and 772,306.60

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Solution

The fourth proportional to 820,246.12, 1,232,117.82 and 772,306.60 is: 1,160,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,246.12 : 1,232,117.82 = 772,306.60 : x
  2. Step 2: Convert to fraction form
    820,246.12/1,232,117.82 = 772,306.60/x
  3. Step 3: Cross multiply
    820,246.12x = 1,232,117.82 × 772,306.60
  4. Step 4: Simplify right side
    820,246.12x = 951,572,724,363.61
  5. Step 5: Solve for x
    x = 951,572,724,363.61/820,246.12
  6. Step 6: Final answer
    x = 1,160,106.34

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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.