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Finding the Fourth Proportional to 3,218,807.70, 4,828,211.55 and 974,945.70

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Solution

The fourth proportional to 3,218,807.70, 4,828,211.55 and 974,945.70 is: 1,462,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218,807.70 : 4,828,211.55 = 974,945.70 : x
  2. Step 2: Convert to fraction form
    3,218,807.70/4,828,211.55 = 974,945.70/x
  3. Step 3: Cross multiply
    3,218,807.70x = 4,828,211.55 × 974,945.70
  4. Step 4: Simplify right side
    3,218,807.70x = 4,707,244,089,362.84
  5. Step 5: Solve for x
    x = 4,707,244,089,362.84/3,218,807.70
  6. Step 6: Final answer
    x = 1,462,418.55

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Similar ratio
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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.