Home / 558,767.86-771,099.66-304,120.90

Finding the Fourth Proportional to 558,767.86, 771,099.66 and 304,120.90

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Solution

The fourth proportional to 558,767.86, 771,099.66 and 304,120.90 is: 419,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,767.86 : 771,099.66 = 304,120.90 : x
  2. Step 2: Convert to fraction form
    558,767.86/771,099.66 = 304,120.90/x
  3. Step 3: Cross multiply
    558,767.86x = 771,099.66 × 304,120.90
  4. Step 4: Simplify right side
    558,767.86x = 234,507,522,588.89
  5. Step 5: Solve for x
    x = 234,507,522,588.89/558,767.86
  6. Step 6: Final answer
    x = 419,686.85

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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.