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Finding the Fourth Proportional to 579,897, 800,259.30 and 338,345.64

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Solution

The fourth proportional to 579,897, 800,259.30 and 338,345.64 is: 466,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,897 : 800,259.30 = 338,345.64 : x
  2. Step 2: Convert to fraction form
    579,897/800,259.30 = 338,345.64/x
  3. Step 3: Cross multiply
    579,897x = 800,259.30 × 338,345.64
  4. Step 4: Simplify right side
    579,897x = 270,764,245,024.45
  5. Step 5: Solve for x
    x = 270,764,245,024.45/579,897
  6. Step 6: Final answer
    x = 466,917.82

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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.