Home / 638,343.32-880,887.26-347,948.50

Finding the Fourth Proportional to 638,343.32, 880,887.26 and 347,948.50

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Solution

The fourth proportional to 638,343.32, 880,887.26 and 347,948.50 is: 480,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,343.32 : 880,887.26 = 347,948.50 : x
  2. Step 2: Convert to fraction form
    638,343.32/880,887.26 = 347,948.50/x
  3. Step 3: Cross multiply
    638,343.32x = 880,887.26 × 347,948.50
  4. Step 4: Simplify right side
    638,343.32x = 306,503,400,786.11
  5. Step 5: Solve for x
    x = 306,503,400,786.11/638,343.32
  6. Step 6: Final answer
    x = 480,154.47

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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.