Home / 1,284,564.60-1,926,878.16-431,648.61

Finding the Fourth Proportional to 1,284,564.60, 1,926,878.16 and 431,648.61

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Solution

The fourth proportional to 1,284,564.60, 1,926,878.16 and 431,648.61 is: 647,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,564.60 : 1,926,878.16 = 431,648.61 : x
  2. Step 2: Convert to fraction form
    1,284,564.60/1,926,878.16 = 431,648.61/x
  3. Step 3: Cross multiply
    1,284,564.60x = 1,926,878.16 × 431,648.61
  4. Step 4: Simplify right side
    1,284,564.60x = 831,734,279,403.36
  5. Step 5: Solve for x
    x = 831,734,279,403.36/1,284,564.60
  6. Step 6: Final answer
    x = 647,483.42

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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.