Home / 727,981.20-1,091,971.80-650,998.80

Finding the Fourth Proportional to 727,981.20, 1,091,971.80 and 650,998.80

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Solution

The fourth proportional to 727,981.20, 1,091,971.80 and 650,998.80 is: 976,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,981.20 : 1,091,971.80 = 650,998.80 : x
  2. Step 2: Convert to fraction form
    727,981.20/1,091,971.80 = 650,998.80/x
  3. Step 3: Cross multiply
    727,981.20x = 1,091,971.80 × 650,998.80
  4. Step 4: Simplify right side
    727,981.20x = 710,872,331,433.84
  5. Step 5: Solve for x
    x = 710,872,331,433.84/727,981.20
  6. Step 6: Final answer
    x = 976,498.20

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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.