Home / 767,310.70-1,058,874.78-423,178.42

Finding the Fourth Proportional to 767,310.70, 1,058,874.78 and 423,178.42

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Solution

The fourth proportional to 767,310.70, 1,058,874.78 and 423,178.42 is: 583,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,310.70 : 1,058,874.78 = 423,178.42 : x
  2. Step 2: Convert to fraction form
    767,310.70/1,058,874.78 = 423,178.42/x
  3. Step 3: Cross multiply
    767,310.70x = 1,058,874.78 × 423,178.42
  4. Step 4: Simplify right side
    767,310.70x = 448,092,956,378.25
  5. Step 5: Solve for x
    x = 448,092,956,378.25/767,310.70
  6. Step 6: Final answer
    x = 583,978.51

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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.