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Finding the Fourth Proportional to 521,596.77, 782,395.14 and 284,810.28

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Solution

The fourth proportional to 521,596.77, 782,395.14 and 284,810.28 is: 427,215.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,596.77 : 782,395.14 = 284,810.28 : x
  2. Step 2: Convert to fraction form
    521,596.77/782,395.14 = 284,810.28/x
  3. Step 3: Cross multiply
    521,596.77x = 782,395.14 × 284,810.28
  4. Step 4: Simplify right side
    521,596.77x = 222,834,178,894.04
  5. Step 5: Solve for x
    x = 222,834,178,894.04/521,596.77
  6. Step 6: Final answer
    x = 427,215.41

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Similar ratio
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1.5x scale

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.