Home / 782,349.19-1,173,523.80-427,169.45

Finding the Fourth Proportional to 782,349.19, 1,173,523.80 and 427,169.45

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Solution

The fourth proportional to 782,349.19, 1,173,523.80 and 427,169.45 is: 640,754.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,349.19 : 1,173,523.80 = 427,169.45 : x
  2. Step 2: Convert to fraction form
    782,349.19/1,173,523.80 = 427,169.45/x
  3. Step 3: Cross multiply
    782,349.19x = 1,173,523.80 × 427,169.45
  4. Step 4: Simplify right side
    782,349.19x = 501,293,516,207.91
  5. Step 5: Solve for x
    x = 501,293,516,207.91/782,349.19
  6. Step 6: Final answer
    x = 640,754.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.