Home / 818,428.29-1,129,487.83-496,151.97

Finding the Fourth Proportional to 818,428.29, 1,129,487.83 and 496,151.97

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Solution

The fourth proportional to 818,428.29, 1,129,487.83 and 496,151.97 is: 684,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,428.29 : 1,129,487.83 = 496,151.97 : x
  2. Step 2: Convert to fraction form
    818,428.29/1,129,487.83 = 496,151.97/x
  3. Step 3: Cross multiply
    818,428.29x = 1,129,487.83 × 496,151.97
  4. Step 4: Simplify right side
    818,428.29x = 560,397,610,705.15
  5. Step 5: Solve for x
    x = 560,397,610,705.15/818,428.29
  6. Step 6: Final answer
    x = 684,724.14

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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.