Home / 980,741.40-1,471,112.10-349,675.80

Finding the Fourth Proportional to 980,741.40, 1,471,112.10 and 349,675.80

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Solution

The fourth proportional to 980,741.40, 1,471,112.10 and 349,675.80 is: 524,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,741.40 : 1,471,112.10 = 349,675.80 : x
  2. Step 2: Convert to fraction form
    980,741.40/1,471,112.10 = 349,675.80/x
  3. Step 3: Cross multiply
    980,741.40x = 1,471,112.10 × 349,675.80
  4. Step 4: Simplify right side
    980,741.40x = 514,412,300,457.18
  5. Step 5: Solve for x
    x = 514,412,300,457.18/980,741.40
  6. Step 6: Final answer
    x = 524,513.70

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Double scale
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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.