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Finding the Fourth Proportional to 480,624.70, 720,937.05 and 401,892.70

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Solution

The fourth proportional to 480,624.70, 720,937.05 and 401,892.70 is: 602,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,624.70 : 720,937.05 = 401,892.70 : x
  2. Step 2: Convert to fraction form
    480,624.70/720,937.05 = 401,892.70/x
  3. Step 3: Cross multiply
    480,624.70x = 720,937.05 × 401,892.70
  4. Step 4: Simplify right side
    480,624.70x = 289,739,337,554.54
  5. Step 5: Solve for x
    x = 289,739,337,554.54/480,624.70
  6. Step 6: Final answer
    x = 602,839.05

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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.