Home / 1,218,106.56-1,827,281.52-419,282.40

Finding the Fourth Proportional to 1,218,106.56, 1,827,281.52 and 419,282.40

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Solution

The fourth proportional to 1,218,106.56, 1,827,281.52 and 419,282.40 is: 628,965.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,106.56 : 1,827,281.52 = 419,282.40 : x
  2. Step 2: Convert to fraction form
    1,218,106.56/1,827,281.52 = 419,282.40/x
  3. Step 3: Cross multiply
    1,218,106.56x = 1,827,281.52 × 419,282.40
  4. Step 4: Simplify right side
    1,218,106.56x = 766,146,981,181.25
  5. Step 5: Solve for x
    x = 766,146,981,181.25/1,218,106.56
  6. Step 6: Final answer
    x = 628,965.48

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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.