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Finding the Fourth Proportional to 555,675, 766,831.50 and 301,026.12

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Solution

The fourth proportional to 555,675, 766,831.50 and 301,026.12 is: 415,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,675 : 766,831.50 = 301,026.12 : x
  2. Step 2: Convert to fraction form
    555,675/766,831.50 = 301,026.12/x
  3. Step 3: Cross multiply
    555,675x = 766,831.50 × 301,026.12
  4. Step 4: Simplify right side
    555,675x = 230,836,311,138.78
  5. Step 5: Solve for x
    x = 230,836,311,138.78/555,675
  6. Step 6: Final answer
    x = 415,416.05

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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.