Home / 1,129,731.19-1,559,027.12-620,433.56

Finding the Fourth Proportional to 1,129,731.19, 1,559,027.12 and 620,433.56

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Solution

The fourth proportional to 1,129,731.19, 1,559,027.12 and 620,433.56 is: 856,197.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,731.19 : 1,559,027.12 = 620,433.56 : x
  2. Step 2: Convert to fraction form
    1,129,731.19/1,559,027.12 = 620,433.56/x
  3. Step 3: Cross multiply
    1,129,731.19x = 1,559,027.12 × 620,433.56
  4. Step 4: Simplify right side
    1,129,731.19x = 967,272,746,993.55
  5. Step 5: Solve for x
    x = 967,272,746,993.55/1,129,731.19
  6. Step 6: Final answer
    x = 856,197.26

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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.