Home / 542,214.20-812,738.10-205,124.60

Finding the Fourth Proportional to 542,214.20, 812,738.10 and 205,124.60

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Solution

The fourth proportional to 542,214.20, 812,738.10 and 205,124.60 is: 307,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,214.20 : 812,738.10 = 205,124.60 : x
  2. Step 2: Convert to fraction form
    542,214.20/812,738.10 = 205,124.60/x
  3. Step 3: Cross multiply
    542,214.20x = 812,738.10 × 205,124.60
  4. Step 4: Simplify right side
    542,214.20x = 166,712,577,667.26
  5. Step 5: Solve for x
    x = 166,712,577,667.26/542,214.20
  6. Step 6: Final answer
    x = 307,466.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.