Home / 805,304.50-1,111,291.89-442,725.72

Finding the Fourth Proportional to 805,304.50, 1,111,291.89 and 442,725.72

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Solution

The fourth proportional to 805,304.50, 1,111,291.89 and 442,725.72 is: 610,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,304.50 : 1,111,291.89 = 442,725.72 : x
  2. Step 2: Convert to fraction form
    805,304.50/1,111,291.89 = 442,725.72/x
  3. Step 3: Cross multiply
    805,304.50x = 1,111,291.89 × 442,725.72
  4. Step 4: Simplify right side
    805,304.50x = 491,997,502,130.41
  5. Step 5: Solve for x
    x = 491,997,502,130.41/805,304.50
  6. Step 6: Final answer
    x = 610,945.92

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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.