Home / 763,083.32-1,053,052.38-418,910.68

Finding the Fourth Proportional to 763,083.32, 1,053,052.38 and 418,910.68

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Solution

The fourth proportional to 763,083.32, 1,053,052.38 and 418,910.68 is: 578,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,083.32 : 1,053,052.38 = 418,910.68 : x
  2. Step 2: Convert to fraction form
    763,083.32/1,053,052.38 = 418,910.68/x
  3. Step 3: Cross multiply
    763,083.32x = 1,053,052.38 × 418,910.68
  4. Step 4: Simplify right side
    763,083.32x = 441,134,888,581.42
  5. Step 5: Solve for x
    x = 441,134,888,581.42/763,083.32
  6. Step 6: Final answer
    x = 578,095.31

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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.