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Finding the Fourth Proportional to 888,809.82, 1,226,588.31 and 486,401.82

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Solution

The fourth proportional to 888,809.82, 1,226,588.31 and 486,401.82 is: 671,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,809.82 : 1,226,588.31 = 486,401.82 : x
  2. Step 2: Convert to fraction form
    888,809.82/1,226,588.31 = 486,401.82/x
  3. Step 3: Cross multiply
    888,809.82x = 1,226,588.31 × 486,401.82
  4. Step 4: Simplify right side
    888,809.82x = 596,614,786,374.72
  5. Step 5: Solve for x
    x = 596,614,786,374.72/888,809.82
  6. Step 6: Final answer
    x = 671,251.34

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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.