Home / 1,243,278.85-1,864,921.91-1,020,182.98

Finding the Fourth Proportional to 1,243,278.85, 1,864,921.91 and 1,020,182.98

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Solution

The fourth proportional to 1,243,278.85, 1,864,921.91 and 1,020,182.98 is: 1,530,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,278.85 : 1,864,921.91 = 1,020,182.98 : x
  2. Step 2: Convert to fraction form
    1,243,278.85/1,864,921.91 = 1,020,182.98/x
  3. Step 3: Cross multiply
    1,243,278.85x = 1,864,921.91 × 1,020,182.98
  4. Step 4: Simplify right side
    1,243,278.85x = 1,902,561,584,836.94
  5. Step 5: Solve for x
    x = 1,902,561,584,836.94/1,243,278.85
  6. Step 6: Final answer
    x = 1,530,277.45

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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.