Home / 1,129,979.53-1,559,398.67-620,692.57

Finding the Fourth Proportional to 1,129,979.53, 1,559,398.67 and 620,692.57

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Solution

The fourth proportional to 1,129,979.53, 1,559,398.67 and 620,692.57 is: 856,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,979.53 : 1,559,398.67 = 620,692.57 : x
  2. Step 2: Convert to fraction form
    1,129,979.53/1,559,398.67 = 620,692.57/x
  3. Step 3: Cross multiply
    1,129,979.53x = 1,559,398.67 × 620,692.57
  4. Step 4: Simplify right side
    1,129,979.53x = 967,907,165,033.42
  5. Step 5: Solve for x
    x = 967,907,165,033.42/1,129,979.53
  6. Step 6: Final answer
    x = 856,570.53

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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.