Home / 811,383.48-1,120,854.51-738,664.92

Finding the Fourth Proportional to 811,383.48, 1,120,854.51 and 738,664.92

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Solution

The fourth proportional to 811,383.48, 1,120,854.51 and 738,664.92 is: 1,020,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,383.48 : 1,120,854.51 = 738,664.92 : x
  2. Step 2: Convert to fraction form
    811,383.48/1,120,854.51 = 738,664.92/x
  3. Step 3: Cross multiply
    811,383.48x = 1,120,854.51 × 738,664.92
  4. Step 4: Simplify right side
    811,383.48x = 827,935,906,960.79
  5. Step 5: Solve for x
    x = 827,935,906,960.79/811,383.48
  6. Step 6: Final answer
    x = 1,020,400.25

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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.