Home / 780,022.80-1,170,034.20-306,723.60

Finding the Fourth Proportional to 780,022.80, 1,170,034.20 and 306,723.60

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Solution

The fourth proportional to 780,022.80, 1,170,034.20 and 306,723.60 is: 460,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,022.80 : 1,170,034.20 = 306,723.60 : x
  2. Step 2: Convert to fraction form
    780,022.80/1,170,034.20 = 306,723.60/x
  3. Step 3: Cross multiply
    780,022.80x = 1,170,034.20 × 306,723.60
  4. Step 4: Simplify right side
    780,022.80x = 358,877,101,947.12
  5. Step 5: Solve for x
    x = 358,877,101,947.12/780,022.80
  6. Step 6: Final answer
    x = 460,085.40

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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.