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Finding the Fourth Proportional to 637,450.16, 955,825.12 and 437,820.80

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Solution

The fourth proportional to 637,450.16, 955,825.12 and 437,820.80 is: 656,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,450.16 : 955,825.12 = 437,820.80 : x
  2. Step 2: Convert to fraction form
    637,450.16/955,825.12 = 437,820.80/x
  3. Step 3: Cross multiply
    637,450.16x = 955,825.12 × 437,820.80
  4. Step 4: Simplify right side
    637,450.16x = 418,480,118,698.50
  5. Step 5: Solve for x
    x = 418,480,118,698.50/637,450.16
  6. Step 6: Final answer
    x = 656,490.73

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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.