Home / 840,999.32-1,260,613.09-419,389.46

Finding the Fourth Proportional to 840,999.32, 1,260,613.09 and 419,389.46

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Solution

The fourth proportional to 840,999.32, 1,260,613.09 and 419,389.46 is: 628,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,999.32 : 1,260,613.09 = 419,389.46 : x
  2. Step 2: Convert to fraction form
    840,999.32/1,260,613.09 = 419,389.46/x
  3. Step 3: Cross multiply
    840,999.32x = 1,260,613.09 × 419,389.46
  4. Step 4: Simplify right side
    840,999.32x = 528,687,842,032.50
  5. Step 5: Solve for x
    x = 528,687,842,032.50/840,999.32
  6. Step 6: Final answer
    x = 628,642.41

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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.