Home / 982,007.68-1,354,712.88-637,819.12

Finding the Fourth Proportional to 982,007.68, 1,354,712.88 and 637,819.12

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Solution

The fourth proportional to 982,007.68, 1,354,712.88 and 637,819.12 is: 879,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,007.68 : 1,354,712.88 = 637,819.12 : x
  2. Step 2: Convert to fraction form
    982,007.68/1,354,712.88 = 637,819.12/x
  3. Step 3: Cross multiply
    982,007.68x = 1,354,712.88 × 637,819.12
  4. Step 4: Simplify right side
    982,007.68x = 864,061,776,974.27
  5. Step 5: Solve for x
    x = 864,061,776,974.27/982,007.68
  6. Step 6: Final answer
    x = 879,893.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.