Home / 1,385,264.68-2,078,104.78-486,548

Finding the Fourth Proportional to 1,385,264.68, 2,078,104.78 and 486,548

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Solution

The fourth proportional to 1,385,264.68, 2,078,104.78 and 486,548 is: 729,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,264.68 : 2,078,104.78 = 486,548 : x
  2. Step 2: Convert to fraction form
    1,385,264.68/2,078,104.78 = 486,548/x
  3. Step 3: Cross multiply
    1,385,264.68x = 2,078,104.78 × 486,548
  4. Step 4: Simplify right side
    1,385,264.68x = 1,011,097,724,499.44
  5. Step 5: Solve for x
    x = 1,011,097,724,499.44/1,385,264.68
  6. Step 6: Final answer
    x = 729,894.97

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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.