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Finding the Fourth Proportional to 449,502.60, 620,332.40 and 258,516.12

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Solution

The fourth proportional to 449,502.60, 620,332.40 and 258,516.12 is: 356,763.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,502.60 : 620,332.40 = 258,516.12 : x
  2. Step 2: Convert to fraction form
    449,502.60/620,332.40 = 258,516.12/x
  3. Step 3: Cross multiply
    449,502.60x = 620,332.40 × 258,516.12
  4. Step 4: Simplify right side
    449,502.60x = 160,365,925,158.29
  5. Step 5: Solve for x
    x = 160,365,925,158.29/449,502.60
  6. Step 6: Final answer
    x = 356,763.06

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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.