Home / 980,134.88-1,352,618.88-550,490.72

Finding the Fourth Proportional to 980,134.88, 1,352,618.88 and 550,490.72

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Solution

The fourth proportional to 980,134.88, 1,352,618.88 and 550,490.72 is: 759,695.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,134.88 : 1,352,618.88 = 550,490.72 : x
  2. Step 2: Convert to fraction form
    980,134.88/1,352,618.88 = 550,490.72/x
  3. Step 3: Cross multiply
    980,134.88x = 1,352,618.88 × 550,490.72
  4. Step 4: Simplify right side
    980,134.88x = 744,604,141,136.79
  5. Step 5: Solve for x
    x = 744,604,141,136.79/980,134.88
  6. Step 6: Final answer
    x = 759,695.59

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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.