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Finding the Fourth Proportional to 672,487.25, 928,018.55 and 366,560.98

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Solution

The fourth proportional to 672,487.25, 928,018.55 and 366,560.98 is: 505,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,487.25 : 928,018.55 = 366,560.98 : x
  2. Step 2: Convert to fraction form
    672,487.25/928,018.55 = 366,560.98/x
  3. Step 3: Cross multiply
    672,487.25x = 928,018.55 × 366,560.98
  4. Step 4: Simplify right side
    672,487.25x = 340,175,391,222.61
  5. Step 5: Solve for x
    x = 340,175,391,222.61/672,487.25
  6. Step 6: Final answer
    x = 505,846.60

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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.