Home / 866,678.03-1,299,312.42-361,615.21

Finding the Fourth Proportional to 866,678.03, 1,299,312.42 and 361,615.21

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Solution

The fourth proportional to 866,678.03, 1,299,312.42 and 361,615.21 is: 542,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,678.03 : 1,299,312.42 = 361,615.21 : x
  2. Step 2: Convert to fraction form
    866,678.03/1,299,312.42 = 361,615.21/x
  3. Step 3: Cross multiply
    866,678.03x = 1,299,312.42 × 361,615.21
  4. Step 4: Simplify right side
    866,678.03x = 469,851,133,680.93
  5. Step 5: Solve for x
    x = 469,851,133,680.93/866,678.03
  6. Step 6: Final answer
    x = 542,128.82

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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.