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Finding the Fourth Proportional to 404,590.80, 606,367.80 and 360,008.40

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Solution

The fourth proportional to 404,590.80, 606,367.80 and 360,008.40 is: 539,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,590.80 : 606,367.80 = 360,008.40 : x
  2. Step 2: Convert to fraction form
    404,590.80/606,367.80 = 360,008.40/x
  3. Step 3: Cross multiply
    404,590.80x = 606,367.80 × 360,008.40
  4. Step 4: Simplify right side
    404,590.80x = 218,297,501,489.52
  5. Step 5: Solve for x
    x = 218,297,501,489.52/404,590.80
  6. Step 6: Final answer
    x = 539,551.32

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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.