Home / 1,420,907.57-2,132,878.61-611,692.50

Finding the Fourth Proportional to 1,420,907.57, 2,132,878.61 and 611,692.50

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Solution

The fourth proportional to 1,420,907.57, 2,132,878.61 and 611,692.50 is: 918,191.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,907.57 : 2,132,878.61 = 611,692.50 : x
  2. Step 2: Convert to fraction form
    1,420,907.57/2,132,878.61 = 611,692.50/x
  3. Step 3: Cross multiply
    1,420,907.57x = 2,132,878.61 × 611,692.50
  4. Step 4: Simplify right side
    1,420,907.57x = 1,304,665,849,147.42
  5. Step 5: Solve for x
    x = 1,304,665,849,147.42/1,420,907.57
  6. Step 6: Final answer
    x = 918,191.92

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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.