Home / 638,224.57-880,734.74-347,845.31

Finding the Fourth Proportional to 638,224.57, 880,734.74 and 347,845.31

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Solution

The fourth proportional to 638,224.57, 880,734.74 and 347,845.31 is: 480,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,224.57 : 880,734.74 = 347,845.31 : x
  2. Step 2: Convert to fraction form
    638,224.57/880,734.74 = 347,845.31/x
  3. Step 3: Cross multiply
    638,224.57x = 880,734.74 × 347,845.31
  4. Step 4: Simplify right side
    638,224.57x = 306,359,448,663.07
  5. Step 5: Solve for x
    x = 306,359,448,663.07/638,224.57
  6. Step 6: Final answer
    x = 480,018.26

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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.