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Finding the Fourth Proportional to 1,258,950.83, 1,888,984.43 and 659,769.53

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Solution

The fourth proportional to 1,258,950.83, 1,888,984.43 and 659,769.53 is: 989,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,950.83 : 1,888,984.43 = 659,769.53 : x
  2. Step 2: Convert to fraction form
    1,258,950.83/1,888,984.43 = 659,769.53/x
  3. Step 3: Cross multiply
    1,258,950.83x = 1,888,984.43 × 659,769.53
  4. Step 4: Simplify right side
    1,258,950.83x = 1,246,294,356,814.65
  5. Step 5: Solve for x
    x = 1,246,294,356,814.65/1,258,950.83
  6. Step 6: Final answer
    x = 989,946.81

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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.