Home / 871,068.48-1,202,043.42-489,111.36

Finding the Fourth Proportional to 871,068.48, 1,202,043.42 and 489,111.36

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Solution

The fourth proportional to 871,068.48, 1,202,043.42 and 489,111.36 is: 674,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,068.48 : 1,202,043.42 = 489,111.36 : x
  2. Step 2: Convert to fraction form
    871,068.48/1,202,043.42 = 489,111.36/x
  3. Step 3: Cross multiply
    871,068.48x = 1,202,043.42 × 489,111.36
  4. Step 4: Simplify right side
    871,068.48x = 587,933,091,935.25
  5. Step 5: Solve for x
    x = 587,933,091,935.25/871,068.48
  6. Step 6: Final answer
    x = 674,956.22

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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.