Home / 784,882.61-1,177,113.13-216,128.31

Finding the Fourth Proportional to 784,882.61, 1,177,113.13 and 216,128.31

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Solution

The fourth proportional to 784,882.61, 1,177,113.13 and 216,128.31 is: 324,134.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,882.61 : 1,177,113.13 = 216,128.31 : x
  2. Step 2: Convert to fraction form
    784,882.61/1,177,113.13 = 216,128.31/x
  3. Step 3: Cross multiply
    784,882.61x = 1,177,113.13 × 216,128.31
  4. Step 4: Simplify right side
    784,882.61x = 254,407,471,465.71
  5. Step 5: Solve for x
    x = 254,407,471,465.71/784,882.61
  6. Step 6: Final answer
    x = 324,134.42

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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.