Home / 677,821.20-1,016,440.20-340,731.60

Finding the Fourth Proportional to 677,821.20, 1,016,440.20 and 340,731.60

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Solution

The fourth proportional to 677,821.20, 1,016,440.20 and 340,731.60 is: 510,950.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,821.20 : 1,016,440.20 = 340,731.60 : x
  2. Step 2: Convert to fraction form
    677,821.20/1,016,440.20 = 340,731.60/x
  3. Step 3: Cross multiply
    677,821.20x = 1,016,440.20 × 340,731.60
  4. Step 4: Simplify right side
    677,821.20x = 346,333,295,650.32
  5. Step 5: Solve for x
    x = 346,333,295,650.32/677,821.20
  6. Step 6: Final answer
    x = 510,950.82

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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.