Home / 558,455.78-831,367.40-555,134.30

Finding the Fourth Proportional to 558,455.78, 831,367.40 and 555,134.30

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Solution

The fourth proportional to 558,455.78, 831,367.40 and 555,134.30 is: 826,422.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,455.78 : 831,367.40 = 555,134.30 : x
  2. Step 2: Convert to fraction form
    558,455.78/831,367.40 = 555,134.30/x
  3. Step 3: Cross multiply
    558,455.78x = 831,367.40 × 555,134.30
  4. Step 4: Simplify right side
    558,455.78x = 461,520,559,641.82
  5. Step 5: Solve for x
    x = 461,520,559,641.82/558,455.78
  6. Step 6: Final answer
    x = 826,422.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.