Home / 551,126.06-760,495.21-309,435.22

Finding the Fourth Proportional to 551,126.06, 760,495.21 and 309,435.22

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Solution

The fourth proportional to 551,126.06, 760,495.21 and 309,435.22 is: 426,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,126.06 : 760,495.21 = 309,435.22 : x
  2. Step 2: Convert to fraction form
    551,126.06/760,495.21 = 309,435.22/x
  3. Step 3: Cross multiply
    551,126.06x = 760,495.21 × 309,435.22
  4. Step 4: Simplify right side
    551,126.06x = 235,324,002,615.30
  5. Step 5: Solve for x
    x = 235,324,002,615.30/551,126.06
  6. Step 6: Final answer
    x = 426,987.62

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1.5x scale

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.