Home / 677,464.16-1,016,755.28-340,600.55

Finding the Fourth Proportional to 677,464.16, 1,016,755.28 and 340,600.55

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Solution

The fourth proportional to 677,464.16, 1,016,755.28 and 340,600.55 is: 511,181.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,464.16 : 1,016,755.28 = 340,600.55 : x
  2. Step 2: Convert to fraction form
    677,464.16/1,016,755.28 = 340,600.55/x
  3. Step 3: Cross multiply
    677,464.16x = 1,016,755.28 × 340,600.55
  4. Step 4: Simplify right side
    677,464.16x = 346,307,403,989.76
  5. Step 5: Solve for x
    x = 346,307,403,989.76/677,464.16
  6. Step 6: Final answer
    x = 511,181.89

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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.