Home / 1,255,378.36-1,732,385.66-711,564.20

Finding the Fourth Proportional to 1,255,378.36, 1,732,385.66 and 711,564.20

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Solution

The fourth proportional to 1,255,378.36, 1,732,385.66 and 711,564.20 is: 981,937.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,378.36 : 1,732,385.66 = 711,564.20 : x
  2. Step 2: Convert to fraction form
    1,255,378.36/1,732,385.66 = 711,564.20/x
  3. Step 3: Cross multiply
    1,255,378.36x = 1,732,385.66 × 711,564.20
  4. Step 4: Simplify right side
    1,255,378.36x = 1,232,703,616,249.37
  5. Step 5: Solve for x
    x = 1,232,703,616,249.37/1,255,378.36
  6. Step 6: Final answer
    x = 981,937.92

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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.