Home / 677,961.20-1,016,941.80-626,639.60

Finding the Fourth Proportional to 677,961.20, 1,016,941.80 and 626,639.60

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Solution

The fourth proportional to 677,961.20, 1,016,941.80 and 626,639.60 is: 939,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,961.20 : 1,016,941.80 = 626,639.60 : x
  2. Step 2: Convert to fraction form
    677,961.20/1,016,941.80 = 626,639.60/x
  3. Step 3: Cross multiply
    677,961.20x = 1,016,941.80 × 626,639.60
  4. Step 4: Simplify right side
    677,961.20x = 637,256,002,775.28
  5. Step 5: Solve for x
    x = 637,256,002,775.28/677,961.20
  6. Step 6: Final answer
    x = 939,959.40

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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.