Home / 1,143,430.34-1,712,858.72-687,769.97

Finding the Fourth Proportional to 1,143,430.34, 1,712,858.72 and 687,769.97

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Solution

The fourth proportional to 1,143,430.34, 1,712,858.72 and 687,769.97 is: 1,030,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,430.34 : 1,712,858.72 = 687,769.97 : x
  2. Step 2: Convert to fraction form
    1,143,430.34/1,712,858.72 = 687,769.97/x
  3. Step 3: Cross multiply
    1,143,430.34x = 1,712,858.72 × 687,769.97
  4. Step 4: Simplify right side
    1,143,430.34x = 1,178,052,783,623.77
  5. Step 5: Solve for x
    x = 1,178,052,783,623.77/1,143,430.34
  6. Step 6: Final answer
    x = 1,030,279.46

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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.