Home / 1,218,036.84-1,827,178.02-419,213.40

Finding the Fourth Proportional to 1,218,036.84, 1,827,178.02 and 419,213.40

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Solution

The fourth proportional to 1,218,036.84, 1,827,178.02 and 419,213.40 is: 628,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,036.84 : 1,827,178.02 = 419,213.40 : x
  2. Step 2: Convert to fraction form
    1,218,036.84/1,827,178.02 = 419,213.40/x
  3. Step 3: Cross multiply
    1,218,036.84x = 1,827,178.02 × 419,213.40
  4. Step 4: Simplify right side
    1,218,036.84x = 765,977,510,169.47
  5. Step 5: Solve for x
    x = 765,977,510,169.47/1,218,036.84
  6. Step 6: Final answer
    x = 628,862.35

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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.