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Finding the Fourth Proportional to 625,692.64, 938,538.94 and 288,633.57

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Solution

The fourth proportional to 625,692.64, 938,538.94 and 288,633.57 is: 432,950.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,692.64 : 938,538.94 = 288,633.57 : x
  2. Step 2: Convert to fraction form
    625,692.64/938,538.94 = 288,633.57/x
  3. Step 3: Cross multiply
    625,692.64x = 938,538.94 × 288,633.57
  4. Step 4: Simplify right side
    625,692.64x = 270,893,843,393.05
  5. Step 5: Solve for x
    x = 270,893,843,393.05/625,692.64
  6. Step 6: Final answer
    x = 432,950.35

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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.