Home / 1,340,381.40-2,010,572.10-453,917.40

Finding the Fourth Proportional to 1,340,381.40, 2,010,572.10 and 453,917.40

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Solution

The fourth proportional to 1,340,381.40, 2,010,572.10 and 453,917.40 is: 680,876.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,381.40 : 2,010,572.10 = 453,917.40 : x
  2. Step 2: Convert to fraction form
    1,340,381.40/2,010,572.10 = 453,917.40/x
  3. Step 3: Cross multiply
    1,340,381.40x = 2,010,572.10 × 453,917.40
  4. Step 4: Simplify right side
    1,340,381.40x = 912,633,660,144.54
  5. Step 5: Solve for x
    x = 912,633,660,144.54/1,340,381.40
  6. Step 6: Final answer
    x = 680,876.10

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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.