Home / 991,596.52-1,487,164.74-485,652.70

Finding the Fourth Proportional to 991,596.52, 1,487,164.74 and 485,652.70

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Solution

The fourth proportional to 991,596.52, 1,487,164.74 and 485,652.70 is: 728,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,596.52 : 1,487,164.74 = 485,652.70 : x
  2. Step 2: Convert to fraction form
    991,596.52/1,487,164.74 = 485,652.70/x
  3. Step 3: Cross multiply
    991,596.52x = 1,487,164.74 × 485,652.70
  4. Step 4: Simplify right side
    991,596.52x = 722,245,571,325.80
  5. Step 5: Solve for x
    x = 722,245,571,325.80/991,596.52
  6. Step 6: Final answer
    x = 728,366.38

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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.