Home / 1,397,140.80-2,095,711.20-346,516.80

Finding the Fourth Proportional to 1,397,140.80, 2,095,711.20 and 346,516.80

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Solution

The fourth proportional to 1,397,140.80, 2,095,711.20 and 346,516.80 is: 519,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,140.80 : 2,095,711.20 = 346,516.80 : x
  2. Step 2: Convert to fraction form
    1,397,140.80/2,095,711.20 = 346,516.80/x
  3. Step 3: Cross multiply
    1,397,140.80x = 2,095,711.20 × 346,516.80
  4. Step 4: Simplify right side
    1,397,140.80x = 726,199,138,748.16
  5. Step 5: Solve for x
    x = 726,199,138,748.16/1,397,140.80
  6. Step 6: Final answer
    x = 519,775.20

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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.