Home / 746,681.70-1,120,022.55-185,716.20

Finding the Fourth Proportional to 746,681.70, 1,120,022.55 and 185,716.20

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Solution

The fourth proportional to 746,681.70, 1,120,022.55 and 185,716.20 is: 278,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,681.70 : 1,120,022.55 = 185,716.20 : x
  2. Step 2: Convert to fraction form
    746,681.70/1,120,022.55 = 185,716.20/x
  3. Step 3: Cross multiply
    746,681.70x = 1,120,022.55 × 185,716.20
  4. Step 4: Simplify right side
    746,681.70x = 208,006,331,900.31
  5. Step 5: Solve for x
    x = 208,006,331,900.31/746,681.70
  6. Step 6: Final answer
    x = 278,574.30

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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.