Home / 515,830.20-771,995.70-452,844.60

Finding the Fourth Proportional to 515,830.20, 771,995.70 and 452,844.60

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Solution

The fourth proportional to 515,830.20, 771,995.70 and 452,844.60 is: 677,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,830.20 : 771,995.70 = 452,844.60 : x
  2. Step 2: Convert to fraction form
    515,830.20/771,995.70 = 452,844.60/x
  3. Step 3: Cross multiply
    515,830.20x = 771,995.70 × 452,844.60
  4. Step 4: Simplify right side
    515,830.20x = 349,594,083,968.22
  5. Step 5: Solve for x
    x = 349,594,083,968.22/515,830.20
  6. Step 6: Final answer
    x = 677,730.94

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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.