Home / 980,739.40-1,471,109.10-349,673.80

Finding the Fourth Proportional to 980,739.40, 1,471,109.10 and 349,673.80

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Solution

The fourth proportional to 980,739.40, 1,471,109.10 and 349,673.80 is: 524,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,739.40 : 1,471,109.10 = 349,673.80 : x
  2. Step 2: Convert to fraction form
    980,739.40/1,471,109.10 = 349,673.80/x
  3. Step 3: Cross multiply
    980,739.40x = 1,471,109.10 × 349,673.80
  4. Step 4: Simplify right side
    980,739.40x = 514,408,309,211.58
  5. Step 5: Solve for x
    x = 514,408,309,211.58/980,739.40
  6. Step 6: Final answer
    x = 524,510.70

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Similar ratio
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1.5x scale

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.