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Finding the Fourth Proportional to 449,502.39, 620,332.19 and 258,515.96

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Solution

The fourth proportional to 449,502.39, 620,332.19 and 258,515.96 is: 356,762.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,502.39 : 620,332.19 = 258,515.96 : x
  2. Step 2: Convert to fraction form
    449,502.39/620,332.19 = 258,515.96/x
  3. Step 3: Cross multiply
    449,502.39x = 620,332.19 × 258,515.96
  4. Step 4: Simplify right side
    449,502.39x = 160,365,767,222.51
  5. Step 5: Solve for x
    x = 160,365,767,222.51/449,502.39
  6. Step 6: Final answer
    x = 356,762.88

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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.