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Finding the Fourth Proportional to 672,230.70, 926,402.40 and 480,911.94

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Solution

The fourth proportional to 672,230.70, 926,402.40 and 480,911.94 is: 662,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,230.70 : 926,402.40 = 480,911.94 : x
  2. Step 2: Convert to fraction form
    672,230.70/926,402.40 = 480,911.94/x
  3. Step 3: Cross multiply
    672,230.70x = 926,402.40 × 480,911.94
  4. Step 4: Simplify right side
    672,230.70x = 445,517,975,404.66
  5. Step 5: Solve for x
    x = 445,517,975,404.66/672,230.70
  6. Step 6: Final answer
    x = 662,745.65

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Double scale
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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.