Home / 1,129,557.60-1,558,687.92-620,248.80

Finding the Fourth Proportional to 1,129,557.60, 1,558,687.92 and 620,248.80

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Solution

The fourth proportional to 1,129,557.60, 1,558,687.92 and 620,248.80 is: 855,887.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,557.60 : 1,558,687.92 = 620,248.80 : x
  2. Step 2: Convert to fraction form
    1,129,557.60/1,558,687.92 = 620,248.80/x
  3. Step 3: Cross multiply
    1,129,557.60x = 1,558,687.92 × 620,248.80
  4. Step 4: Simplify right side
    1,129,557.60x = 966,774,311,954.50
  5. Step 5: Solve for x
    x = 966,774,311,954.50/1,129,557.60
  6. Step 6: Final answer
    x = 855,887.57

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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.