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Finding the Fourth Proportional to 646,507.28, 892,177.80 and 360,030.80

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Solution

The fourth proportional to 646,507.28, 892,177.80 and 360,030.80 is: 496,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,507.28 : 892,177.80 = 360,030.80 : x
  2. Step 2: Convert to fraction form
    646,507.28/892,177.80 = 360,030.80/x
  3. Step 3: Cross multiply
    646,507.28x = 892,177.80 × 360,030.80
  4. Step 4: Simplify right side
    646,507.28x = 321,211,487,076.24
  5. Step 5: Solve for x
    x = 321,211,487,076.24/646,507.28
  6. Step 6: Final answer
    x = 496,841.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.