Home / 818,710.08-1,229,212.80-419,637.12

Finding the Fourth Proportional to 818,710.08, 1,229,212.80 and 419,637.12

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Solution

The fourth proportional to 818,710.08, 1,229,212.80 and 419,637.12 is: 630,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,710.08 : 1,229,212.80 = 419,637.12 : x
  2. Step 2: Convert to fraction form
    818,710.08/1,229,212.80 = 419,637.12/x
  3. Step 3: Cross multiply
    818,710.08x = 1,229,212.80 × 419,637.12
  4. Step 4: Simplify right side
    818,710.08x = 515,823,319,259.14
  5. Step 5: Solve for x
    x = 515,823,319,259.14/818,710.08
  6. Step 6: Final answer
    x = 630,043.93

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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.