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Finding the Fourth Proportional to 671,678.57, 926,903.15 and 365,758.71

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Solution

The fourth proportional to 671,678.57, 926,903.15 and 365,758.71 is: 504,739.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,678.57 : 926,903.15 = 365,758.71 : x
  2. Step 2: Convert to fraction form
    671,678.57/926,903.15 = 365,758.71/x
  3. Step 3: Cross multiply
    671,678.57x = 926,903.15 × 365,758.71
  4. Step 4: Simplify right side
    671,678.57x = 339,022,900,438.94
  5. Step 5: Solve for x
    x = 339,022,900,438.94/671,678.57
  6. Step 6: Final answer
    x = 504,739.79

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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.