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Finding the Fourth Proportional to 668,648.25, 922,750.79 and 366,842.25

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Solution

The fourth proportional to 668,648.25, 922,750.79 and 366,842.25 is: 506,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,648.25 : 922,750.79 = 366,842.25 : x
  2. Step 2: Convert to fraction form
    668,648.25/922,750.79 = 366,842.25/x
  3. Step 3: Cross multiply
    668,648.25x = 922,750.79 × 366,842.25
  4. Step 4: Simplify right side
    668,648.25x = 338,503,974,158.67
  5. Step 5: Solve for x
    x = 338,503,974,158.67/668,648.25
  6. Step 6: Final answer
    x = 506,251.19

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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.