Home / 744,427.80-1,116,641.70-669,778.20

Finding the Fourth Proportional to 744,427.80, 1,116,641.70 and 669,778.20

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Solution

The fourth proportional to 744,427.80, 1,116,641.70 and 669,778.20 is: 1,004,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,427.80 : 1,116,641.70 = 669,778.20 : x
  2. Step 2: Convert to fraction form
    744,427.80/1,116,641.70 = 669,778.20/x
  3. Step 3: Cross multiply
    744,427.80x = 1,116,641.70 × 669,778.20
  4. Step 4: Simplify right side
    744,427.80x = 747,902,267,870.94
  5. Step 5: Solve for x
    x = 747,902,267,870.94/744,427.80
  6. Step 6: Final answer
    x = 1,004,667.30

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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.