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Finding the Fourth Proportional to 721,476.52, 995,794.50 and 419,710.12

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Solution

The fourth proportional to 721,476.52, 995,794.50 and 419,710.12 is: 579,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,476.52 : 995,794.50 = 419,710.12 : x
  2. Step 2: Convert to fraction form
    721,476.52/995,794.50 = 419,710.12/x
  3. Step 3: Cross multiply
    721,476.52x = 995,794.50 × 419,710.12
  4. Step 4: Simplify right side
    721,476.52x = 417,945,029,090.34
  5. Step 5: Solve for x
    x = 417,945,029,090.34/721,476.52
  6. Step 6: Final answer
    x = 579,291.24

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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.