Home / 426,040.36-587,515.70-330,512.20

Finding the Fourth Proportional to 426,040.36, 587,515.70 and 330,512.20

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Solution

The fourth proportional to 426,040.36, 587,515.70 and 330,512.20 is: 455,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,040.36 : 587,515.70 = 330,512.20 : x
  2. Step 2: Convert to fraction form
    426,040.36/587,515.70 = 330,512.20/x
  3. Step 3: Cross multiply
    426,040.36x = 587,515.70 × 330,512.20
  4. Step 4: Simplify right side
    426,040.36x = 194,181,106,541.54
  5. Step 5: Solve for x
    x = 194,181,106,541.54/426,040.36
  6. Step 6: Final answer
    x = 455,781.01

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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.