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Finding the Fourth Proportional to 720,019.60, 1,080,029.40 and 246,720.40

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Solution

The fourth proportional to 720,019.60, 1,080,029.40 and 246,720.40 is: 370,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,019.60 : 1,080,029.40 = 246,720.40 : x
  2. Step 2: Convert to fraction form
    720,019.60/1,080,029.40 = 246,720.40/x
  3. Step 3: Cross multiply
    720,019.60x = 1,080,029.40 × 246,720.40
  4. Step 4: Simplify right side
    720,019.60x = 266,465,285,579.76
  5. Step 5: Solve for x
    x = 266,465,285,579.76/720,019.60
  6. Step 6: Final answer
    x = 370,080.60

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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.