Home / 1,125,601.86-1,687,790.40-405,845.58

Finding the Fourth Proportional to 1,125,601.86, 1,687,790.40 and 405,845.58

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Solution

The fourth proportional to 1,125,601.86, 1,687,790.40 and 405,845.58 is: 608,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,601.86 : 1,687,790.40 = 405,845.58 : x
  2. Step 2: Convert to fraction form
    1,125,601.86/1,687,790.40 = 405,845.58/x
  3. Step 3: Cross multiply
    1,125,601.86x = 1,687,790.40 × 405,845.58
  4. Step 4: Simplify right side
    1,125,601.86x = 684,982,273,806.43
  5. Step 5: Solve for x
    x = 684,982,273,806.43/1,125,601.86
  6. Step 6: Final answer
    x = 608,547.57

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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.