Home / 932,142.80-1,397,986.99-258,206.60

Finding the Fourth Proportional to 932,142.80, 1,397,986.99 and 258,206.60

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Solution

The fourth proportional to 932,142.80, 1,397,986.99 and 258,206.60 is: 387,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,142.80 : 1,397,986.99 = 258,206.60 : x
  2. Step 2: Convert to fraction form
    932,142.80/1,397,986.99 = 258,206.60/x
  3. Step 3: Cross multiply
    932,142.80x = 1,397,986.99 × 258,206.60
  4. Step 4: Simplify right side
    932,142.80x = 360,969,459,896.68
  5. Step 5: Solve for x
    x = 360,969,459,896.68/932,142.80
  6. Step 6: Final answer
    x = 387,246.96

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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.