Home / 2,921,407.40-4,382,111.10-926,863.40

Finding the Fourth Proportional to 2,921,407.40, 4,382,111.10 and 926,863.40

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Solution

The fourth proportional to 2,921,407.40, 4,382,111.10 and 926,863.40 is: 1,390,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921,407.40 : 4,382,111.10 = 926,863.40 : x
  2. Step 2: Convert to fraction form
    2,921,407.40/4,382,111.10 = 926,863.40/x
  3. Step 3: Cross multiply
    2,921,407.40x = 4,382,111.10 × 926,863.40
  4. Step 4: Simplify right side
    2,921,407.40x = 4,061,618,393,323.74
  5. Step 5: Solve for x
    x = 4,061,618,393,323.74/2,921,407.40
  6. Step 6: Final answer
    x = 1,390,295.10

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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.