Home / 1,712,279.05-2,362,939.19-987,123.31

Finding the Fourth Proportional to 1,712,279.05, 2,362,939.19 and 987,123.31

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Solution

The fourth proportional to 1,712,279.05, 2,362,939.19 and 987,123.31 is: 1,362,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712,279.05 : 2,362,939.19 = 987,123.31 : x
  2. Step 2: Convert to fraction form
    1,712,279.05/2,362,939.19 = 987,123.31/x
  3. Step 3: Cross multiply
    1,712,279.05x = 2,362,939.19 × 987,123.31
  4. Step 4: Simplify right side
    1,712,279.05x = 2,332,512,347,420.27
  5. Step 5: Solve for x
    x = 2,332,512,347,420.27/1,712,279.05
  6. Step 6: Final answer
    x = 1,362,226.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.