Home / 788,121.50-1,087,543.08-443,847.38

Finding the Fourth Proportional to 788,121.50, 1,087,543.08 and 443,847.38

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Solution

The fourth proportional to 788,121.50, 1,087,543.08 and 443,847.38 is: 612,473.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,121.50 : 1,087,543.08 = 443,847.38 : x
  2. Step 2: Convert to fraction form
    788,121.50/1,087,543.08 = 443,847.38/x
  3. Step 3: Cross multiply
    788,121.50x = 1,087,543.08 × 443,847.38
  4. Step 4: Simplify right side
    788,121.50x = 482,703,141,257.42
  5. Step 5: Solve for x
    x = 482,703,141,257.42/788,121.50
  6. Step 6: Final answer
    x = 612,473.01

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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.