Home / 778,766.25-1,168,275.74-305,194.89

Finding the Fourth Proportional to 778,766.25, 1,168,275.74 and 305,194.89

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Solution

The fourth proportional to 778,766.25, 1,168,275.74 and 305,194.89 is: 457,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,766.25 : 1,168,275.74 = 305,194.89 : x
  2. Step 2: Convert to fraction form
    778,766.25/1,168,275.74 = 305,194.89/x
  3. Step 3: Cross multiply
    778,766.25x = 1,168,275.74 × 305,194.89
  4. Step 4: Simplify right side
    778,766.25x = 356,551,784,432.99
  5. Step 5: Solve for x
    x = 356,551,784,432.99/778,766.25
  6. Step 6: Final answer
    x = 457,841.85

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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.