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Finding the Fourth Proportional to 637,305.72, 956,549.88 and 321,984.06

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Solution

The fourth proportional to 637,305.72, 956,549.88 and 321,984.06 is: 483,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,305.72 : 956,549.88 = 321,984.06 : x
  2. Step 2: Convert to fraction form
    637,305.72/956,549.88 = 321,984.06/x
  3. Step 3: Cross multiply
    637,305.72x = 956,549.88 × 321,984.06
  4. Step 4: Simplify right side
    637,305.72x = 307,993,813,954.91
  5. Step 5: Solve for x
    x = 307,993,813,954.91/637,305.72
  6. Step 6: Final answer
    x = 483,274.83

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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.