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Finding the Fourth Proportional to 482,427.36, 723,641 and 330,474.60

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Solution

The fourth proportional to 482,427.36, 723,641 and 330,474.60 is: 495,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,427.36 : 723,641 = 330,474.60 : x
  2. Step 2: Convert to fraction form
    482,427.36/723,641 = 330,474.60/x
  3. Step 3: Cross multiply
    482,427.36x = 723,641 × 330,474.60
  4. Step 4: Simplify right side
    482,427.36x = 239,144,970,018.60
  5. Step 5: Solve for x
    x = 239,144,970,018.60/482,427.36
  6. Step 6: Final answer
    x = 495,711.87

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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.