Home / 792,638.20-1,188,957.30-731,985.40

Finding the Fourth Proportional to 792,638.20, 1,188,957.30 and 731,985.40

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Solution

The fourth proportional to 792,638.20, 1,188,957.30 and 731,985.40 is: 1,097,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,638.20 : 1,188,957.30 = 731,985.40 : x
  2. Step 2: Convert to fraction form
    792,638.20/1,188,957.30 = 731,985.40/x
  3. Step 3: Cross multiply
    792,638.20x = 1,188,957.30 × 731,985.40
  4. Step 4: Simplify right side
    792,638.20x = 870,299,384,823.42
  5. Step 5: Solve for x
    x = 870,299,384,823.42/792,638.20
  6. Step 6: Final answer
    x = 1,097,978.10

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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.