Home / 349,284.16-524,364-280,025.92

Finding the Fourth Proportional to 349,284.16, 524,364 and 280,025.92

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Solution

The fourth proportional to 349,284.16, 524,364 and 280,025.92 is: 420,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,284.16 : 524,364 = 280,025.92 : x
  2. Step 2: Convert to fraction form
    349,284.16/524,364 = 280,025.92/x
  3. Step 3: Cross multiply
    349,284.16x = 524,364 × 280,025.92
  4. Step 4: Simplify right side
    349,284.16x = 146,835,511,514.88
  5. Step 5: Solve for x
    x = 146,835,511,514.88/349,284.16
  6. Step 6: Final answer
    x = 420,389.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.