Home / 787,127.19-1,180,775.16-218,510.70

Finding the Fourth Proportional to 787,127.19, 1,180,775.16 and 218,510.70

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Solution

The fourth proportional to 787,127.19, 1,180,775.16 and 218,510.70 is: 327,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,127.19 : 1,180,775.16 = 218,510.70 : x
  2. Step 2: Convert to fraction form
    787,127.19/1,180,775.16 = 218,510.70/x
  3. Step 3: Cross multiply
    787,127.19x = 1,180,775.16 × 218,510.70
  4. Step 4: Simplify right side
    787,127.19x = 258,012,006,754.21
  5. Step 5: Solve for x
    x = 258,012,006,754.21/787,127.19
  6. Step 6: Final answer
    x = 327,789.47

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1.5x scale

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.