Home / 638,124.36-880,600.28-347,738.46

Finding the Fourth Proportional to 638,124.36, 880,600.28 and 347,738.46

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Solution

The fourth proportional to 638,124.36, 880,600.28 and 347,738.46 is: 479,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,124.36 : 880,600.28 = 347,738.46 : x
  2. Step 2: Convert to fraction form
    638,124.36/880,600.28 = 347,738.46/x
  3. Step 3: Cross multiply
    638,124.36x = 880,600.28 × 347,738.46
  4. Step 4: Simplify right side
    638,124.36x = 306,218,585,242.77
  5. Step 5: Solve for x
    x = 306,218,585,242.77/638,124.36
  6. Step 6: Final answer
    x = 479,872.90

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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.