Home / 449,251.03-619,979.21-245,314.90

Finding the Fourth Proportional to 449,251.03, 619,979.21 and 245,314.90

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Solution

The fourth proportional to 449,251.03, 619,979.21 and 245,314.90 is: 338,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,251.03 : 619,979.21 = 245,314.90 : x
  2. Step 2: Convert to fraction form
    449,251.03/619,979.21 = 245,314.90/x
  3. Step 3: Cross multiply
    449,251.03x = 619,979.21 × 245,314.90
  4. Step 4: Simplify right side
    449,251.03x = 152,090,137,903.23
  5. Step 5: Solve for x
    x = 152,090,137,903.23/449,251.03
  6. Step 6: Final answer
    x = 338,541.55

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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.