Home / 1,431,035.56-1,974,876.42-786,478.60

Finding the Fourth Proportional to 1,431,035.56, 1,974,876.42 and 786,478.60

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Solution

The fourth proportional to 1,431,035.56, 1,974,876.42 and 786,478.60 is: 1,085,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,035.56 : 1,974,876.42 = 786,478.60 : x
  2. Step 2: Convert to fraction form
    1,431,035.56/1,974,876.42 = 786,478.60/x
  3. Step 3: Cross multiply
    1,431,035.56x = 1,974,876.42 × 786,478.60
  4. Step 4: Simplify right side
    1,431,035.56x = 1,553,198,041,974.61
  5. Step 5: Solve for x
    x = 1,553,198,041,974.61/1,431,035.56
  6. Step 6: Final answer
    x = 1,085,366.49

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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.