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Finding the Fourth Proportional to 476,678.52, 715,017.15 and 121,692.60

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Solution

The fourth proportional to 476,678.52, 715,017.15 and 121,692.60 is: 182,538.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,678.52 : 715,017.15 = 121,692.60 : x
  2. Step 2: Convert to fraction form
    476,678.52/715,017.15 = 121,692.60/x
  3. Step 3: Cross multiply
    476,678.52x = 715,017.15 × 121,692.60
  4. Step 4: Simplify right side
    476,678.52x = 87,012,296,028.09
  5. Step 5: Solve for x
    x = 87,012,296,028.09/476,678.52
  6. Step 6: Final answer
    x = 182,538.74

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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.