Home / 871,394.48-1,202,529.18-489,421.32

Finding the Fourth Proportional to 871,394.48, 1,202,529.18 and 489,421.32

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Solution

The fourth proportional to 871,394.48, 1,202,529.18 and 489,421.32 is: 675,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,394.48 : 1,202,529.18 = 489,421.32 : x
  2. Step 2: Convert to fraction form
    871,394.48/1,202,529.18 = 489,421.32/x
  3. Step 3: Cross multiply
    871,394.48x = 1,202,529.18 × 489,421.32
  4. Step 4: Simplify right side
    871,394.48x = 588,543,418,614.12
  5. Step 5: Solve for x
    x = 588,543,418,614.12/871,394.48
  6. Step 6: Final answer
    x = 675,404.12

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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.