Home / 550,831.53-760,202.14-309,115.05

Finding the Fourth Proportional to 550,831.53, 760,202.14 and 309,115.05

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Solution

The fourth proportional to 550,831.53, 760,202.14 and 309,115.05 is: 426,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,831.53 : 760,202.14 = 309,115.05 : x
  2. Step 2: Convert to fraction form
    550,831.53/760,202.14 = 309,115.05/x
  3. Step 3: Cross multiply
    550,831.53x = 760,202.14 × 309,115.05
  4. Step 4: Simplify right side
    550,831.53x = 234,989,921,743.42
  5. Step 5: Solve for x
    x = 234,989,921,743.42/550,831.53
  6. Step 6: Final answer
    x = 426,609.42

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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.