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Finding the Fourth Proportional to 788,281.95, 1,087,850.88 and 482,352.85

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Solution

The fourth proportional to 788,281.95, 1,087,850.88 and 482,352.85 is: 665,660.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,281.95 : 1,087,850.88 = 482,352.85 : x
  2. Step 2: Convert to fraction form
    788,281.95/1,087,850.88 = 482,352.85/x
  3. Step 3: Cross multiply
    788,281.95x = 1,087,850.88 × 482,352.85
  4. Step 4: Simplify right side
    788,281.95x = 524,727,972,343.01
  5. Step 5: Solve for x
    x = 524,727,972,343.01/788,281.95
  6. Step 6: Final answer
    x = 665,660.27

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Double scale
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1.5x scale

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.