Home / 1,218,061.56-1,827,214.38-419,237.40

Finding the Fourth Proportional to 1,218,061.56, 1,827,214.38 and 419,237.40

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Solution

The fourth proportional to 1,218,061.56, 1,827,214.38 and 419,237.40 is: 628,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,061.56 : 1,827,214.38 = 419,237.40 : x
  2. Step 2: Convert to fraction form
    1,218,061.56/1,827,214.38 = 419,237.40/x
  3. Step 3: Cross multiply
    1,218,061.56x = 1,827,214.38 × 419,237.40
  4. Step 4: Simplify right side
    1,218,061.56x = 766,036,605,913.81
  5. Step 5: Solve for x
    x = 766,036,605,913.81/1,218,061.56
  6. Step 6: Final answer
    x = 628,898.10

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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.