Home / 2,686,312.80-4,029,469.20-913,384.80

Finding the Fourth Proportional to 2,686,312.80, 4,029,469.20 and 913,384.80

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Solution

The fourth proportional to 2,686,312.80, 4,029,469.20 and 913,384.80 is: 1,370,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,312.80 : 4,029,469.20 = 913,384.80 : x
  2. Step 2: Convert to fraction form
    2,686,312.80/4,029,469.20 = 913,384.80/x
  3. Step 3: Cross multiply
    2,686,312.80x = 4,029,469.20 × 913,384.80
  4. Step 4: Simplify right side
    2,686,312.80x = 3,680,455,919,348.16
  5. Step 5: Solve for x
    x = 3,680,455,919,348.16/2,686,312.80
  6. Step 6: Final answer
    x = 1,370,077.20

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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.