Home / 980,607.20-1,353,229.76-550,878.12

Finding the Fourth Proportional to 980,607.20, 1,353,229.76 and 550,878.12

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Solution

The fourth proportional to 980,607.20, 1,353,229.76 and 550,878.12 is: 760,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,607.20 : 1,353,229.76 = 550,878.12 : x
  2. Step 2: Convert to fraction form
    980,607.20/1,353,229.76 = 550,878.12/x
  3. Step 3: Cross multiply
    980,607.20x = 1,353,229.76 × 550,878.12
  4. Step 4: Simplify right side
    980,607.20x = 745,464,666,116.85
  5. Step 5: Solve for x
    x = 745,464,666,116.85/980,607.20
  6. Step 6: Final answer
    x = 760,207.21

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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.