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Finding the Fourth Proportional to 669,735.77, 925,036.68 and 488,156.45

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Solution

The fourth proportional to 669,735.77, 925,036.68 and 488,156.45 is: 674,239.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,735.77 : 925,036.68 = 488,156.45 : x
  2. Step 2: Convert to fraction form
    669,735.77/925,036.68 = 488,156.45/x
  3. Step 3: Cross multiply
    669,735.77x = 925,036.68 × 488,156.45
  4. Step 4: Simplify right side
    669,735.77x = 451,562,614,762.62
  5. Step 5: Solve for x
    x = 451,562,614,762.62/669,735.77
  6. Step 6: Final answer
    x = 674,239.96

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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.