Home / 917,518.85-1,376,278.28-784,658.60

Finding the Fourth Proportional to 917,518.85, 1,376,278.28 and 784,658.60

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Solution

The fourth proportional to 917,518.85, 1,376,278.28 and 784,658.60 is: 1,176,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,518.85 : 1,376,278.28 = 784,658.60 : x
  2. Step 2: Convert to fraction form
    917,518.85/1,376,278.28 = 784,658.60/x
  3. Step 3: Cross multiply
    917,518.85x = 1,376,278.28 × 784,658.60
  4. Step 4: Simplify right side
    917,518.85x = 1,079,908,584,471.91
  5. Step 5: Solve for x
    x = 1,079,908,584,471.91/917,518.85
  6. Step 6: Final answer
    x = 1,176,987.90

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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.