Home / 1,259,321.23-1,737,899.72-686,398.51

Finding the Fourth Proportional to 1,259,321.23, 1,737,899.72 and 686,398.51

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Solution

The fourth proportional to 1,259,321.23, 1,737,899.72 and 686,398.51 is: 947,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,321.23 : 1,737,899.72 = 686,398.51 : x
  2. Step 2: Convert to fraction form
    1,259,321.23/1,737,899.72 = 686,398.51/x
  3. Step 3: Cross multiply
    1,259,321.23x = 1,737,899.72 × 686,398.51
  4. Step 4: Simplify right side
    1,259,321.23x = 1,192,891,778,337.42
  5. Step 5: Solve for x
    x = 1,192,891,778,337.42/1,259,321.23
  6. Step 6: Final answer
    x = 947,249.80

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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.