Home / 1,129,695.49-1,559,006.90-620,408.80

Finding the Fourth Proportional to 1,129,695.49, 1,559,006.90 and 620,408.80

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Solution

The fourth proportional to 1,129,695.49, 1,559,006.90 and 620,408.80 is: 856,179.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,695.49 : 1,559,006.90 = 620,408.80 : x
  2. Step 2: Convert to fraction form
    1,129,695.49/1,559,006.90 = 620,408.80/x
  3. Step 3: Cross multiply
    1,129,695.49x = 1,559,006.90 × 620,408.80
  4. Step 4: Simplify right side
    1,129,695.49x = 967,221,600,020.72
  5. Step 5: Solve for x
    x = 967,221,600,020.72/1,129,695.49
  6. Step 6: Final answer
    x = 856,179.04

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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.