Home / 1,545,104.70-2,318,641.20-905,407.20

Finding the Fourth Proportional to 1,545,104.70, 2,318,641.20 and 905,407.20

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Solution

The fourth proportional to 1,545,104.70, 2,318,641.20 and 905,407.20 is: 1,358,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545,104.70 : 2,318,641.20 = 905,407.20 : x
  2. Step 2: Convert to fraction form
    1,545,104.70/2,318,641.20 = 905,407.20/x
  3. Step 3: Cross multiply
    1,545,104.70x = 2,318,641.20 × 905,407.20
  4. Step 4: Simplify right side
    1,545,104.70x = 2,099,314,436,696.64
  5. Step 5: Solve for x
    x = 2,099,314,436,696.64/1,545,104.70
  6. Step 6: Final answer
    x = 1,358,687.50

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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.