Home / 638,250.75-880,787.27-347,865.55

Finding the Fourth Proportional to 638,250.75, 880,787.27 and 347,865.55

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Solution

The fourth proportional to 638,250.75, 880,787.27 and 347,865.55 is: 480,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,250.75 : 880,787.27 = 347,865.55 : x
  2. Step 2: Convert to fraction form
    638,250.75/880,787.27 = 347,865.55/x
  3. Step 3: Cross multiply
    638,250.75x = 880,787.27 × 347,865.55
  4. Step 4: Simplify right side
    638,250.75x = 306,395,548,111.55
  5. Step 5: Solve for x
    x = 306,395,548,111.55/638,250.75
  6. Step 6: Final answer
    x = 480,055.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.