Home / 1,119,874.85-1,679,818.64-278,426.60

Finding the Fourth Proportional to 1,119,874.85, 1,679,818.64 and 278,426.60

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Solution

The fourth proportional to 1,119,874.85, 1,679,818.64 and 278,426.60 is: 417,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,874.85 : 1,679,818.64 = 278,426.60 : x
  2. Step 2: Convert to fraction form
    1,119,874.85/1,679,818.64 = 278,426.60/x
  3. Step 3: Cross multiply
    1,119,874.85x = 1,679,818.64 × 278,426.60
  4. Step 4: Simplify right side
    1,119,874.85x = 467,706,192,551.82
  5. Step 5: Solve for x
    x = 467,706,192,551.82/1,119,874.85
  6. Step 6: Final answer
    x = 417,641.48

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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.