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Finding the Fourth Proportional to 404,612.80, 606,400.80 and 360,030.40

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Solution

The fourth proportional to 404,612.80, 606,400.80 and 360,030.40 is: 539,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,612.80 : 606,400.80 = 360,030.40 : x
  2. Step 2: Convert to fraction form
    404,612.80/606,400.80 = 360,030.40/x
  3. Step 3: Cross multiply
    404,612.80x = 606,400.80 × 360,030.40
  4. Step 4: Simplify right side
    404,612.80x = 218,322,722,584.32
  5. Step 5: Solve for x
    x = 218,322,722,584.32/404,612.80
  6. Step 6: Final answer
    x = 539,584.32

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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.