Home / 1,253,439.39-1,880,428.92-388,856.77

Finding the Fourth Proportional to 1,253,439.39, 1,880,428.92 and 388,856.77

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Solution

The fourth proportional to 1,253,439.39, 1,880,428.92 and 388,856.77 is: 583,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,439.39 : 1,880,428.92 = 388,856.77 : x
  2. Step 2: Convert to fraction form
    1,253,439.39/1,880,428.92 = 388,856.77/x
  3. Step 3: Cross multiply
    1,253,439.39x = 1,880,428.92 × 388,856.77
  4. Step 4: Simplify right side
    1,253,439.39x = 731,217,516,045.79
  5. Step 5: Solve for x
    x = 731,217,516,045.79/1,253,439.39
  6. Step 6: Final answer
    x = 583,368.87

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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.