Home / 678,419.89-1,017,651.44-341,276.29

Finding the Fourth Proportional to 678,419.89, 1,017,651.44 and 341,276.29

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Solution

The fourth proportional to 678,419.89, 1,017,651.44 and 341,276.29 is: 511,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,419.89 : 1,017,651.44 = 341,276.29 : x
  2. Step 2: Convert to fraction form
    678,419.89/1,017,651.44 = 341,276.29/x
  3. Step 3: Cross multiply
    678,419.89x = 1,017,651.44 × 341,276.29
  4. Step 4: Simplify right side
    678,419.89x = 347,300,307,956.36
  5. Step 5: Solve for x
    x = 347,300,307,956.36/678,419.89
  6. Step 6: Final answer
    x = 511,925.30

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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.