Home / 790,692.82-1,091,156.58-428,116.93

Finding the Fourth Proportional to 790,692.82, 1,091,156.58 and 428,116.93

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Solution

The fourth proportional to 790,692.82, 1,091,156.58 and 428,116.93 is: 590,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,692.82 : 1,091,156.58 = 428,116.93 : x
  2. Step 2: Convert to fraction form
    790,692.82/1,091,156.58 = 428,116.93/x
  3. Step 3: Cross multiply
    790,692.82x = 1,091,156.58 × 428,116.93
  4. Step 4: Simplify right side
    790,692.82x = 467,142,602,451.01
  5. Step 5: Solve for x
    x = 467,142,602,451.01/790,692.82
  6. Step 6: Final answer
    x = 590,801.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.