Home / 390,214.03-585,037.18-263,540.26

Finding the Fourth Proportional to 390,214.03, 585,037.18 and 263,540.26

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Solution

The fourth proportional to 390,214.03, 585,037.18 and 263,540.26 is: 395,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,214.03 : 585,037.18 = 263,540.26 : x
  2. Step 2: Convert to fraction form
    390,214.03/585,037.18 = 263,540.26/x
  3. Step 3: Cross multiply
    390,214.03x = 585,037.18 × 263,540.26
  4. Step 4: Simplify right side
    390,214.03x = 154,180,850,526.87
  5. Step 5: Solve for x
    x = 154,180,850,526.87/390,214.03
  6. Step 6: Final answer
    x = 395,118.68

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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.