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Finding the Fourth Proportional to 480,010.30, 720,015.45 and 301,939.90

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Solution

The fourth proportional to 480,010.30, 720,015.45 and 301,939.90 is: 452,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,010.30 : 720,015.45 = 301,939.90 : x
  2. Step 2: Convert to fraction form
    480,010.30/720,015.45 = 301,939.90/x
  3. Step 3: Cross multiply
    480,010.30x = 720,015.45 × 301,939.90
  4. Step 4: Simplify right side
    480,010.30x = 217,401,392,971.46
  5. Step 5: Solve for x
    x = 217,401,392,971.46/480,010.30
  6. Step 6: Final answer
    x = 452,909.85

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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.