Home / 763,957.99-1,054,258.49-419,815.31

Finding the Fourth Proportional to 763,957.99, 1,054,258.49 and 419,815.31

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Solution

The fourth proportional to 763,957.99, 1,054,258.49 and 419,815.31 is: 579,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,957.99 : 1,054,258.49 = 419,815.31 : x
  2. Step 2: Convert to fraction form
    763,957.99/1,054,258.49 = 419,815.31/x
  3. Step 3: Cross multiply
    763,957.99x = 1,054,258.49 × 419,815.31
  4. Step 4: Simplify right side
    763,957.99x = 442,593,854,799.48
  5. Step 5: Solve for x
    x = 442,593,854,799.48/763,957.99
  6. Step 6: Final answer
    x = 579,343.18

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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.