Home / 390,845.90-587,253-248,756.52

Finding the Fourth Proportional to 390,845.90, 587,253 and 248,756.52

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Solution

The fourth proportional to 390,845.90, 587,253 and 248,756.52 is: 373,761.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,845.90 : 587,253 = 248,756.52 : x
  2. Step 2: Convert to fraction form
    390,845.90/587,253 = 248,756.52/x
  3. Step 3: Cross multiply
    390,845.90x = 587,253 × 248,756.52
  4. Step 4: Simplify right side
    390,845.90x = 146,083,012,639.56
  5. Step 5: Solve for x
    x = 146,083,012,639.56/390,845.90
  6. Step 6: Final answer
    x = 373,761.15

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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.