Home / 3,119,278.30-4,678,917.45-755,374.30

Finding the Fourth Proportional to 3,119,278.30, 4,678,917.45 and 755,374.30

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Solution

The fourth proportional to 3,119,278.30, 4,678,917.45 and 755,374.30 is: 1,133,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,278.30 : 4,678,917.45 = 755,374.30 : x
  2. Step 2: Convert to fraction form
    3,119,278.30/4,678,917.45 = 755,374.30/x
  3. Step 3: Cross multiply
    3,119,278.30x = 4,678,917.45 × 755,374.30
  4. Step 4: Simplify right side
    3,119,278.30x = 3,534,333,993,551.54
  5. Step 5: Solve for x
    x = 3,534,333,993,551.54/3,119,278.30
  6. Step 6: Final answer
    x = 1,133,061.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.