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Finding the Fourth Proportional to 408,272.40, 563,690.88 and 365,117.76

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Solution

The fourth proportional to 408,272.40, 563,690.88 and 365,117.76 is: 504,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,272.40 : 563,690.88 = 365,117.76 : x
  2. Step 2: Convert to fraction form
    408,272.40/563,690.88 = 365,117.76/x
  3. Step 3: Cross multiply
    408,272.40x = 563,690.88 × 365,117.76
  4. Step 4: Simplify right side
    408,272.40x = 205,813,551,438.03
  5. Step 5: Solve for x
    x = 205,813,551,438.03/408,272.40
  6. Step 6: Final answer
    x = 504,108.41

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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.