Home / 1,315,645.92-1,815,283.44-771,753.60

Finding the Fourth Proportional to 1,315,645.92, 1,815,283.44 and 771,753.60

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Solution

The fourth proportional to 1,315,645.92, 1,815,283.44 and 771,753.60 is: 1,064,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,645.92 : 1,815,283.44 = 771,753.60 : x
  2. Step 2: Convert to fraction form
    1,315,645.92/1,815,283.44 = 771,753.60/x
  3. Step 3: Cross multiply
    1,315,645.92x = 1,815,283.44 × 771,753.60
  4. Step 4: Simplify right side
    1,315,645.92x = 1,400,951,529,840.38
  5. Step 5: Solve for x
    x = 1,400,951,529,840.38/1,315,645.92
  6. Step 6: Final answer
    x = 1,064,839.34

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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.