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Finding the Fourth Proportional to 541,868.40, 813,580.20 and 305,672.40

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Solution

The fourth proportional to 541,868.40, 813,580.20 and 305,672.40 is: 458,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,868.40 : 813,580.20 = 305,672.40 : x
  2. Step 2: Convert to fraction form
    541,868.40/813,580.20 = 305,672.40/x
  3. Step 3: Cross multiply
    541,868.40x = 813,580.20 × 305,672.40
  4. Step 4: Simplify right side
    541,868.40x = 248,689,012,326.48
  5. Step 5: Solve for x
    x = 248,689,012,326.48/541,868.40
  6. Step 6: Final answer
    x = 458,947.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.