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Finding the Fourth Proportional to 487,919.60, 730,842.60 and 404,975.60

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Solution

The fourth proportional to 487,919.60, 730,842.60 and 404,975.60 is: 606,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,919.60 : 730,842.60 = 404,975.60 : x
  2. Step 2: Convert to fraction form
    487,919.60/730,842.60 = 404,975.60/x
  3. Step 3: Cross multiply
    487,919.60x = 730,842.60 × 404,975.60
  4. Step 4: Simplify right side
    487,919.60x = 295,973,420,440.56
  5. Step 5: Solve for x
    x = 295,973,420,440.56/487,919.60
  6. Step 6: Final answer
    x = 606,602.85

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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.