Home / 1,019,777.32-1,408,731.78-817,174.12

Finding the Fourth Proportional to 1,019,777.32, 1,408,731.78 and 817,174.12

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Solution

The fourth proportional to 1,019,777.32, 1,408,731.78 and 817,174.12 is: 1,128,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,777.32 : 1,408,731.78 = 817,174.12 : x
  2. Step 2: Convert to fraction form
    1,019,777.32/1,408,731.78 = 817,174.12/x
  3. Step 3: Cross multiply
    1,019,777.32x = 1,408,731.78 × 817,174.12
  4. Step 4: Simplify right side
    1,019,777.32x = 1,151,179,152,637.53
  5. Step 5: Solve for x
    x = 1,151,179,152,637.53/1,019,777.32
  6. Step 6: Final answer
    x = 1,128,853.46

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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.