Home / 638,061.60-880,564.24-351,581.62

Finding the Fourth Proportional to 638,061.60, 880,564.24 and 351,581.62

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Solution

The fourth proportional to 638,061.60, 880,564.24 and 351,581.62 is: 485,204.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,061.60 : 880,564.24 = 351,581.62 : x
  2. Step 2: Convert to fraction form
    638,061.60/880,564.24 = 351,581.62/x
  3. Step 3: Cross multiply
    638,061.60x = 880,564.24 × 351,581.62
  4. Step 4: Simplify right side
    638,061.60x = 309,590,202,013.27
  5. Step 5: Solve for x
    x = 309,590,202,013.27/638,061.60
  6. Step 6: Final answer
    x = 485,204.25

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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.