Home / 980,437.28-1,353,129.75-550,717.29

Finding the Fourth Proportional to 980,437.28, 1,353,129.75 and 550,717.29

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Solution

The fourth proportional to 980,437.28, 1,353,129.75 and 550,717.29 is: 760,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,437.28 : 1,353,129.75 = 550,717.29 : x
  2. Step 2: Convert to fraction form
    980,437.28/1,353,129.75 = 550,717.29/x
  3. Step 3: Cross multiply
    980,437.28x = 1,353,129.75 × 550,717.29
  4. Step 4: Simplify right side
    980,437.28x = 745,191,948,938.38
  5. Step 5: Solve for x
    x = 745,191,948,938.38/980,437.28
  6. Step 6: Final answer
    x = 760,060.81

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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.