Home / 439,035.59-658,080.93-287,175.47

Finding the Fourth Proportional to 439,035.59, 658,080.93 and 287,175.47

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Solution

The fourth proportional to 439,035.59, 658,080.93 and 287,175.47 is: 430,454.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,035.59 : 658,080.93 = 287,175.47 : x
  2. Step 2: Convert to fraction form
    439,035.59/658,080.93 = 287,175.47/x
  3. Step 3: Cross multiply
    439,035.59x = 658,080.93 × 287,175.47
  4. Step 4: Simplify right side
    439,035.59x = 188,984,702,015.99
  5. Step 5: Solve for x
    x = 188,984,702,015.99/439,035.59
  6. Step 6: Final answer
    x = 430,454.17

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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.