Home / 718,703.94-1,078,769.22-381,747.39

Finding the Fourth Proportional to 718,703.94, 1,078,769.22 and 381,747.39

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Solution

The fourth proportional to 718,703.94, 1,078,769.22 and 381,747.39 is: 572,999.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,703.94 : 1,078,769.22 = 381,747.39 : x
  2. Step 2: Convert to fraction form
    718,703.94/1,078,769.22 = 381,747.39/x
  3. Step 3: Cross multiply
    718,703.94x = 1,078,769.22 × 381,747.39
  4. Step 4: Simplify right side
    718,703.94x = 411,817,334,147.34
  5. Step 5: Solve for x
    x = 411,817,334,147.34/718,703.94
  6. Step 6: Final answer
    x = 572,999.97

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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.