Home / 442,919.60-662,629.80-384,405.20

Finding the Fourth Proportional to 442,919.60, 662,629.80 and 384,405.20

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Solution

The fourth proportional to 442,919.60, 662,629.80 and 384,405.20 is: 575,089.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,919.60 : 662,629.80 = 384,405.20 : x
  2. Step 2: Convert to fraction form
    442,919.60/662,629.80 = 384,405.20/x
  3. Step 3: Cross multiply
    442,919.60x = 662,629.80 × 384,405.20
  4. Step 4: Simplify right side
    442,919.60x = 254,718,340,794.96
  5. Step 5: Solve for x
    x = 254,718,340,794.96/442,919.60
  6. Step 6: Final answer
    x = 575,089.34

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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.