Home / 787,754.92-1,087,104.90-448,215.88

Finding the Fourth Proportional to 787,754.92, 1,087,104.90 and 448,215.88

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Solution

The fourth proportional to 787,754.92, 1,087,104.90 and 448,215.88 is: 618,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,754.92 : 1,087,104.90 = 448,215.88 : x
  2. Step 2: Convert to fraction form
    787,754.92/1,087,104.90 = 448,215.88/x
  3. Step 3: Cross multiply
    787,754.92x = 1,087,104.90 × 448,215.88
  4. Step 4: Simplify right side
    787,754.92x = 487,257,679,405.81
  5. Step 5: Solve for x
    x = 487,257,679,405.81/787,754.92
  6. Step 6: Final answer
    x = 618,539.68

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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.