Home / 426,043.36-587,519.84-330,515.20

Finding the Fourth Proportional to 426,043.36, 587,519.84 and 330,515.20

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Solution

The fourth proportional to 426,043.36, 587,519.84 and 330,515.20 is: 455,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,043.36 : 587,519.84 = 330,515.20 : x
  2. Step 2: Convert to fraction form
    426,043.36/587,519.84 = 330,515.20/x
  3. Step 3: Cross multiply
    426,043.36x = 587,519.84 × 330,515.20
  4. Step 4: Simplify right side
    426,043.36x = 194,184,237,421.57
  5. Step 5: Solve for x
    x = 194,184,237,421.57/426,043.36
  6. Step 6: Final answer
    x = 455,785.15

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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.