Home / 1,078,012.80-1,617,019.20-516,758.40

Finding the Fourth Proportional to 1,078,012.80, 1,617,019.20 and 516,758.40

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Solution

The fourth proportional to 1,078,012.80, 1,617,019.20 and 516,758.40 is: 775,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,012.80 : 1,617,019.20 = 516,758.40 : x
  2. Step 2: Convert to fraction form
    1,078,012.80/1,617,019.20 = 516,758.40/x
  3. Step 3: Cross multiply
    1,078,012.80x = 1,617,019.20 × 516,758.40
  4. Step 4: Simplify right side
    1,078,012.80x = 835,608,254,561.28
  5. Step 5: Solve for x
    x = 835,608,254,561.28/1,078,012.80
  6. Step 6: Final answer
    x = 775,137.60

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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.