Home / 522,080.20-781,370.70-459,094.60

Finding the Fourth Proportional to 522,080.20, 781,370.70 and 459,094.60

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Solution

The fourth proportional to 522,080.20, 781,370.70 and 459,094.60 is: 687,103.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,080.20 : 781,370.70 = 459,094.60 : x
  2. Step 2: Convert to fraction form
    522,080.20/781,370.70 = 459,094.60/x
  3. Step 3: Cross multiply
    522,080.20x = 781,370.70 × 459,094.60
  4. Step 4: Simplify right side
    522,080.20x = 358,723,068,968.22
  5. Step 5: Solve for x
    x = 358,723,068,968.22/522,080.20
  6. Step 6: Final answer
    x = 687,103.38

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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.