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Finding the Fourth Proportional to 449,507.57, 620,312.61 and 245,553.25

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Solution

The fourth proportional to 449,507.57, 620,312.61 and 245,553.25 is: 338,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,507.57 : 620,312.61 = 245,553.25 : x
  2. Step 2: Convert to fraction form
    449,507.57/620,312.61 = 245,553.25/x
  3. Step 3: Cross multiply
    449,507.57x = 620,312.61 × 245,553.25
  4. Step 4: Simplify right side
    449,507.57x = 152,319,774,299.92
  5. Step 5: Solve for x
    x = 152,319,774,299.92/449,507.57
  6. Step 6: Final answer
    x = 338,859.20

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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.