Home / 1,287,057.03-1,776,138.98-714,095.85

Finding the Fourth Proportional to 1,287,057.03, 1,776,138.98 and 714,095.85

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Solution

The fourth proportional to 1,287,057.03, 1,776,138.98 and 714,095.85 is: 985,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,057.03 : 1,776,138.98 = 714,095.85 : x
  2. Step 2: Convert to fraction form
    1,287,057.03/1,776,138.98 = 714,095.85/x
  3. Step 3: Cross multiply
    1,287,057.03x = 1,776,138.98 × 714,095.85
  4. Step 4: Simplify right side
    1,287,057.03x = 1,268,333,471,070.75
  5. Step 5: Solve for x
    x = 1,268,333,471,070.75/1,287,057.03
  6. Step 6: Final answer
    x = 985,452.42

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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.