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Finding the Fourth Proportional to 485,600.07, 670,353.73 and 345,988.67

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Solution

The fourth proportional to 485,600.07, 670,353.73 and 345,988.67 is: 477,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,600.07 : 670,353.73 = 345,988.67 : x
  2. Step 2: Convert to fraction form
    485,600.07/670,353.73 = 345,988.67/x
  3. Step 3: Cross multiply
    485,600.07x = 670,353.73 × 345,988.67
  4. Step 4: Simplify right side
    485,600.07x = 231,934,795,472.24
  5. Step 5: Solve for x
    x = 231,934,795,472.24/485,600.07
  6. Step 6: Final answer
    x = 477,625.13

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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.