Home / 784,222.80-1,176,334.20-778,317.90

Finding the Fourth Proportional to 784,222.80, 1,176,334.20 and 778,317.90

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Solution

The fourth proportional to 784,222.80, 1,176,334.20 and 778,317.90 is: 1,167,476.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,222.80 : 1,176,334.20 = 778,317.90 : x
  2. Step 2: Convert to fraction form
    784,222.80/1,176,334.20 = 778,317.90/x
  3. Step 3: Cross multiply
    784,222.80x = 1,176,334.20 × 778,317.90
  4. Step 4: Simplify right side
    784,222.80x = 915,561,964,242.18
  5. Step 5: Solve for x
    x = 915,561,964,242.18/784,222.80
  6. Step 6: Final answer
    x = 1,167,476.85

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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.