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Finding the Fourth Proportional to 520,067.20, 779,582.40 and 239,094.40

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Solution

The fourth proportional to 520,067.20, 779,582.40 and 239,094.40 is: 358,403.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,067.20 : 779,582.40 = 239,094.40 : x
  2. Step 2: Convert to fraction form
    520,067.20/779,582.40 = 239,094.40/x
  3. Step 3: Cross multiply
    520,067.20x = 779,582.40 × 239,094.40
  4. Step 4: Simplify right side
    520,067.20x = 186,393,786,178.56
  5. Step 5: Solve for x
    x = 186,393,786,178.56/520,067.20
  6. Step 6: Final answer
    x = 358,403.27

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1.5x scale

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.