Home / 911,581.35-1,257,974.91-503,681.55

Finding the Fourth Proportional to 911,581.35, 1,257,974.91 and 503,681.55

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Solution

The fourth proportional to 911,581.35, 1,257,974.91 and 503,681.55 is: 695,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,581.35 : 1,257,974.91 = 503,681.55 : x
  2. Step 2: Convert to fraction form
    911,581.35/1,257,974.91 = 503,681.55/x
  3. Step 3: Cross multiply
    911,581.35x = 1,257,974.91 × 503,681.55
  4. Step 4: Simplify right side
    911,581.35x = 633,618,752,529.91
  5. Step 5: Solve for x
    x = 633,618,752,529.91/911,581.35
  6. Step 6: Final answer
    x = 695,076.48

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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.