Home / 687,979.83-949,861.81-446,949.34

Finding the Fourth Proportional to 687,979.83, 949,861.81 and 446,949.34

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Solution

The fourth proportional to 687,979.83, 949,861.81 and 446,949.34 is: 617,082.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,979.83 : 949,861.81 = 446,949.34 : x
  2. Step 2: Convert to fraction form
    687,979.83/949,861.81 = 446,949.34/x
  3. Step 3: Cross multiply
    687,979.83x = 949,861.81 × 446,949.34
  4. Step 4: Simplify right side
    687,979.83x = 424,540,109,070.71
  5. Step 5: Solve for x
    x = 424,540,109,070.71/687,979.83
  6. Step 6: Final answer
    x = 617,082.20

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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.