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Finding the Fourth Proportional to 671,288.60, 926,385.83 and 365,366.92

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Solution

The fourth proportional to 671,288.60, 926,385.83 and 365,366.92 is: 504,210.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,288.60 : 926,385.83 = 365,366.92 : x
  2. Step 2: Convert to fraction form
    671,288.60/926,385.83 = 365,366.92/x
  3. Step 3: Cross multiply
    671,288.60x = 926,385.83 × 365,366.92
  4. Step 4: Simplify right side
    671,288.60x = 338,470,737,438.74
  5. Step 5: Solve for x
    x = 338,470,737,438.74/671,288.60
  6. Step 6: Final answer
    x = 504,210.47

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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.