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Finding the Fourth Proportional to 522,499.51, 721,116.03 and 307,659.52

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Solution

The fourth proportional to 522,499.51, 721,116.03 and 307,659.52 is: 424,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,499.51 : 721,116.03 = 307,659.52 : x
  2. Step 2: Convert to fraction form
    522,499.51/721,116.03 = 307,659.52/x
  3. Step 3: Cross multiply
    522,499.51x = 721,116.03 × 307,659.52
  4. Step 4: Simplify right side
    522,499.51x = 221,858,211,654.11
  5. Step 5: Solve for x
    x = 221,858,211,654.11/522,499.51
  6. Step 6: Final answer
    x = 424,609.42

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1.5x scale

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.