Home / 448,834.56-619,616.16-279,123.36

Finding the Fourth Proportional to 448,834.56, 619,616.16 and 279,123.36

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Solution

The fourth proportional to 448,834.56, 619,616.16 and 279,123.36 is: 385,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,834.56 : 619,616.16 = 279,123.36 : x
  2. Step 2: Convert to fraction form
    448,834.56/619,616.16 = 279,123.36/x
  3. Step 3: Cross multiply
    448,834.56x = 619,616.16 × 279,123.36
  4. Step 4: Simplify right side
    448,834.56x = 172,949,344,489.50
  5. Step 5: Solve for x
    x = 172,949,344,489.50/448,834.56
  6. Step 6: Final answer
    x = 385,329.83

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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.