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Finding the Fourth Proportional to 419,545.52, 578,969.96 and 228,559.04

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Solution

The fourth proportional to 419,545.52, 578,969.96 and 228,559.04 is: 315,409.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,545.52 : 578,969.96 = 228,559.04 : x
  2. Step 2: Convert to fraction form
    419,545.52/578,969.96 = 228,559.04/x
  3. Step 3: Cross multiply
    419,545.52x = 578,969.96 × 228,559.04
  4. Step 4: Simplify right side
    419,545.52x = 132,328,818,246.44
  5. Step 5: Solve for x
    x = 132,328,818,246.44/419,545.52
  6. Step 6: Final answer
    x = 315,409.92

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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.