Home / 871,701.54-1,307,565.42-331,987.65

Finding the Fourth Proportional to 871,701.54, 1,307,565.42 and 331,987.65

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Solution

The fourth proportional to 871,701.54, 1,307,565.42 and 331,987.65 is: 497,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,701.54 : 1,307,565.42 = 331,987.65 : x
  2. Step 2: Convert to fraction form
    871,701.54/1,307,565.42 = 331,987.65/x
  3. Step 3: Cross multiply
    871,701.54x = 1,307,565.42 × 331,987.65
  4. Step 4: Simplify right side
    871,701.54x = 434,095,571,007.06
  5. Step 5: Solve for x
    x = 434,095,571,007.06/871,701.54
  6. Step 6: Final answer
    x = 497,986.47

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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.