Home / 763,872.45-1,054,151.43-419,702.85

Finding the Fourth Proportional to 763,872.45, 1,054,151.43 and 419,702.85

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Solution

The fourth proportional to 763,872.45, 1,054,151.43 and 419,702.85 is: 579,194.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,872.45 : 1,054,151.43 = 419,702.85 : x
  2. Step 2: Convert to fraction form
    763,872.45/1,054,151.43 = 419,702.85/x
  3. Step 3: Cross multiply
    763,872.45x = 1,054,151.43 × 419,702.85
  4. Step 4: Simplify right side
    763,872.45x = 442,430,359,502.58
  5. Step 5: Solve for x
    x = 442,430,359,502.58/763,872.45
  6. Step 6: Final answer
    x = 579,194.03

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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.