Home / 817,656.84-1,226,689.38-285,185.52

Finding the Fourth Proportional to 817,656.84, 1,226,689.38 and 285,185.52

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Solution

The fourth proportional to 817,656.84, 1,226,689.38 and 285,185.52 is: 427,849.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,656.84 : 1,226,689.38 = 285,185.52 : x
  2. Step 2: Convert to fraction form
    817,656.84/1,226,689.38 = 285,185.52/x
  3. Step 3: Cross multiply
    817,656.84x = 1,226,689.38 × 285,185.52
  4. Step 4: Simplify right side
    817,656.84x = 349,834,048,713.78
  5. Step 5: Solve for x
    x = 349,834,048,713.78/817,656.84
  6. Step 6: Final answer
    x = 427,849.47

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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.