Home / 1,260,875.60-1,891,486.20-419,339.60

Finding the Fourth Proportional to 1,260,875.60, 1,891,486.20 and 419,339.60

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Solution

The fourth proportional to 1,260,875.60, 1,891,486.20 and 419,339.60 is: 629,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,875.60 : 1,891,486.20 = 419,339.60 : x
  2. Step 2: Convert to fraction form
    1,260,875.60/1,891,486.20 = 419,339.60/x
  3. Step 3: Cross multiply
    1,260,875.60x = 1,891,486.20 × 419,339.60
  4. Step 4: Simplify right side
    1,260,875.60x = 793,175,066,513.52
  5. Step 5: Solve for x
    x = 793,175,066,513.52/1,260,875.60
  6. Step 6: Final answer
    x = 629,066.87

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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.