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Finding the Fourth Proportional to 637,972.40, 956,728.20 and 322,324.40

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Solution

The fourth proportional to 637,972.40, 956,728.20 and 322,324.40 is: 483,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,972.40 : 956,728.20 = 322,324.40 : x
  2. Step 2: Convert to fraction form
    637,972.40/956,728.20 = 322,324.40/x
  3. Step 3: Cross multiply
    637,972.40x = 956,728.20 × 322,324.40
  4. Step 4: Simplify right side
    637,972.40x = 308,376,843,028.08
  5. Step 5: Solve for x
    x = 308,376,843,028.08/637,972.40
  6. Step 6: Final answer
    x = 483,370.19

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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.