Home / 1,317,654.78-1,818,365.70-714,042.78

Finding the Fourth Proportional to 1,317,654.78, 1,818,365.70 and 714,042.78

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Solution

The fourth proportional to 1,317,654.78, 1,818,365.70 and 714,042.78 is: 985,380.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,654.78 : 1,818,365.70 = 714,042.78 : x
  2. Step 2: Convert to fraction form
    1,317,654.78/1,818,365.70 = 714,042.78/x
  3. Step 3: Cross multiply
    1,317,654.78x = 1,818,365.70 × 714,042.78
  4. Step 4: Simplify right side
    1,317,654.78x = 1,298,390,899,484.65
  5. Step 5: Solve for x
    x = 1,298,390,899,484.65/1,317,654.78
  6. Step 6: Final answer
    x = 985,380.18

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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.