Home / 1,228,864.50-1,843,607.79-342,400.50

Finding the Fourth Proportional to 1,228,864.50, 1,843,607.79 and 342,400.50

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Solution

The fourth proportional to 1,228,864.50, 1,843,607.79 and 342,400.50 is: 513,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,864.50 : 1,843,607.79 = 342,400.50 : x
  2. Step 2: Convert to fraction form
    1,228,864.50/1,843,607.79 = 342,400.50/x
  3. Step 3: Cross multiply
    1,228,864.50x = 1,843,607.79 × 342,400.50
  4. Step 4: Simplify right side
    1,228,864.50x = 631,252,229,099.90
  5. Step 5: Solve for x
    x = 631,252,229,099.90/1,228,864.50
  6. Step 6: Final answer
    x = 513,687.42

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1.5x scale

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.