Home / 1,421,054.74-2,133,098.83-611,839.62

Finding the Fourth Proportional to 1,421,054.74, 2,133,098.83 and 611,839.62

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Solution

The fourth proportional to 1,421,054.74, 2,133,098.83 and 611,839.62 is: 918,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,054.74 : 2,133,098.83 = 611,839.62 : x
  2. Step 2: Convert to fraction form
    1,421,054.74/2,133,098.83 = 611,839.62/x
  3. Step 3: Cross multiply
    1,421,054.74x = 2,133,098.83 × 611,839.62
  4. Step 4: Simplify right side
    1,421,054.74x = 1,305,114,377,569.64
  5. Step 5: Solve for x
    x = 1,305,114,377,569.64/1,421,054.74
  6. Step 6: Final answer
    x = 918,412.46

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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.