Home / 558,454.78-831,365.91-555,133.30

Finding the Fourth Proportional to 558,454.78, 831,365.91 and 555,133.30

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Solution

The fourth proportional to 558,454.78, 831,365.91 and 555,133.30 is: 826,421.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,454.78 : 831,365.91 = 555,133.30 : x
  2. Step 2: Convert to fraction form
    558,454.78/831,365.91 = 555,133.30/x
  3. Step 3: Cross multiply
    558,454.78x = 831,365.91 × 555,133.30
  4. Step 4: Simplify right side
    558,454.78x = 461,518,901,125.80
  5. Step 5: Solve for x
    x = 461,518,901,125.80/558,454.78
  6. Step 6: Final answer
    x = 826,421.26

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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.