Home / 859,664.80-1,289,497.20-771,091.30

Finding the Fourth Proportional to 859,664.80, 1,289,497.20 and 771,091.30

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Solution

The fourth proportional to 859,664.80, 1,289,497.20 and 771,091.30 is: 1,156,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,664.80 : 1,289,497.20 = 771,091.30 : x
  2. Step 2: Convert to fraction form
    859,664.80/1,289,497.20 = 771,091.30/x
  3. Step 3: Cross multiply
    859,664.80x = 1,289,497.20 × 771,091.30
  4. Step 4: Simplify right side
    859,664.80x = 994,320,072,294.36
  5. Step 5: Solve for x
    x = 994,320,072,294.36/859,664.80
  6. Step 6: Final answer
    x = 1,156,636.95

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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.