Home / 677,930.96-1,016,902.20-172,492.40

Finding the Fourth Proportional to 677,930.96, 1,016,902.20 and 172,492.40

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Solution

The fourth proportional to 677,930.96, 1,016,902.20 and 172,492.40 is: 258,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,930.96 : 1,016,902.20 = 172,492.40 : x
  2. Step 2: Convert to fraction form
    677,930.96/1,016,902.20 = 172,492.40/x
  3. Step 3: Cross multiply
    677,930.96x = 1,016,902.20 × 172,492.40
  4. Step 4: Simplify right side
    677,930.96x = 175,407,901,043.28
  5. Step 5: Solve for x
    x = 175,407,901,043.28/677,930.96
  6. Step 6: Final answer
    x = 258,740.07

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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.