Home / 817,756.38-1,226,284.65-285,119.82

Finding the Fourth Proportional to 817,756.38, 1,226,284.65 and 285,119.82

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Solution

The fourth proportional to 817,756.38, 1,226,284.65 and 285,119.82 is: 427,557.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,756.38 : 1,226,284.65 = 285,119.82 : x
  2. Step 2: Convert to fraction form
    817,756.38/1,226,284.65 = 285,119.82/x
  3. Step 3: Cross multiply
    817,756.38x = 1,226,284.65 × 285,119.82
  4. Step 4: Simplify right side
    817,756.38x = 349,638,058,676.76
  5. Step 5: Solve for x
    x = 349,638,058,676.76/817,756.38
  6. Step 6: Final answer
    x = 427,557.73

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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.