Home / 771,910.72-1,159,640.64-544,729.60

Finding the Fourth Proportional to 771,910.72, 1,159,640.64 and 544,729.60

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Solution

The fourth proportional to 771,910.72, 1,159,640.64 and 544,729.60 is: 818,346.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,910.72 : 1,159,640.64 = 544,729.60 : x
  2. Step 2: Convert to fraction form
    771,910.72/1,159,640.64 = 544,729.60/x
  3. Step 3: Cross multiply
    771,910.72x = 1,159,640.64 × 544,729.60
  4. Step 4: Simplify right side
    771,910.72x = 631,690,581,970.94
  5. Step 5: Solve for x
    x = 631,690,581,970.94/771,910.72
  6. Step 6: Final answer
    x = 818,346.69

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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.