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Finding the Fourth Proportional to 625,809.84, 863,766.96 and 371,308.56

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Solution

The fourth proportional to 625,809.84, 863,766.96 and 371,308.56 is: 512,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,809.84 : 863,766.96 = 371,308.56 : x
  2. Step 2: Convert to fraction form
    625,809.84/863,766.96 = 371,308.56/x
  3. Step 3: Cross multiply
    625,809.84x = 863,766.96 × 371,308.56
  4. Step 4: Simplify right side
    625,809.84x = 320,724,066,093.18
  5. Step 5: Solve for x
    x = 320,724,066,093.18/625,809.84
  6. Step 6: Final answer
    x = 512,494.44

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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.