Home / 980,531.56-1,353,191.35-738,386.92

Finding the Fourth Proportional to 980,531.56, 1,353,191.35 and 738,386.92

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Solution

The fourth proportional to 980,531.56, 1,353,191.35 and 738,386.92 is: 1,019,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,531.56 : 1,353,191.35 = 738,386.92 : x
  2. Step 2: Convert to fraction form
    980,531.56/1,353,191.35 = 738,386.92/x
  3. Step 3: Cross multiply
    980,531.56x = 1,353,191.35 × 738,386.92
  4. Step 4: Simplify right side
    980,531.56x = 999,178,786,331.19
  5. Step 5: Solve for x
    x = 999,178,786,331.19/980,531.56
  6. Step 6: Final answer
    x = 1,019,017.47

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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.