Home / 772,766.48-1,158,331.56-259,943.40

Finding the Fourth Proportional to 772,766.48, 1,158,331.56 and 259,943.40

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Solution

The fourth proportional to 772,766.48, 1,158,331.56 and 259,943.40 is: 389,639.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,766.48 : 1,158,331.56 = 259,943.40 : x
  2. Step 2: Convert to fraction form
    772,766.48/1,158,331.56 = 259,943.40/x
  3. Step 3: Cross multiply
    772,766.48x = 1,158,331.56 × 259,943.40
  4. Step 4: Simplify right side
    772,766.48x = 301,100,644,033.70
  5. Step 5: Solve for x
    x = 301,100,644,033.70/772,766.48
  6. Step 6: Final answer
    x = 389,639.89

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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.