Home / 763,291.82-1,053,294.80-419,125.34

Finding the Fourth Proportional to 763,291.82, 1,053,294.80 and 419,125.34

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Solution

The fourth proportional to 763,291.82, 1,053,294.80 and 419,125.34 is: 578,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,291.82 : 1,053,294.80 = 419,125.34 : x
  2. Step 2: Convert to fraction form
    763,291.82/1,053,294.80 = 419,125.34/x
  3. Step 3: Cross multiply
    763,291.82x = 1,053,294.80 × 419,125.34
  4. Step 4: Simplify right side
    763,291.82x = 441,462,541,170.23
  5. Step 5: Solve for x
    x = 441,462,541,170.23/763,291.82
  6. Step 6: Final answer
    x = 578,366.66

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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.