Home / 1,078,020.80-1,617,031.20-516,766.40

Finding the Fourth Proportional to 1,078,020.80, 1,617,031.20 and 516,766.40

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Solution

The fourth proportional to 1,078,020.80, 1,617,031.20 and 516,766.40 is: 775,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,020.80 : 1,617,031.20 = 516,766.40 : x
  2. Step 2: Convert to fraction form
    1,078,020.80/1,617,031.20 = 516,766.40/x
  3. Step 3: Cross multiply
    1,078,020.80x = 1,617,031.20 × 516,766.40
  4. Step 4: Simplify right side
    1,078,020.80x = 835,627,391,911.68
  5. Step 5: Solve for x
    x = 835,627,391,911.68/1,078,020.80
  6. Step 6: Final answer
    x = 775,149.60

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Double scale
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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.