Home / 638,223.38-880,733.10-347,844.12

Finding the Fourth Proportional to 638,223.38, 880,733.10 and 347,844.12

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Solution

The fourth proportional to 638,223.38, 880,733.10 and 347,844.12 is: 480,016.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,223.38 : 880,733.10 = 347,844.12 : x
  2. Step 2: Convert to fraction form
    638,223.38/880,733.10 = 347,844.12/x
  3. Step 3: Cross multiply
    638,223.38x = 880,733.10 × 347,844.12
  4. Step 4: Simplify right side
    638,223.38x = 306,357,830,124.37
  5. Step 5: Solve for x
    x = 306,357,830,124.37/638,223.38
  6. Step 6: Final answer
    x = 480,016.62

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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.