Home / 749,886.66-1,034,839.40-405,721.71

Finding the Fourth Proportional to 749,886.66, 1,034,839.40 and 405,721.71

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Solution

The fourth proportional to 749,886.66, 1,034,839.40 and 405,721.71 is: 559,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,886.66 : 1,034,839.40 = 405,721.71 : x
  2. Step 2: Convert to fraction form
    749,886.66/1,034,839.40 = 405,721.71/x
  3. Step 3: Cross multiply
    749,886.66x = 1,034,839.40 × 405,721.71
  4. Step 4: Simplify right side
    749,886.66x = 419,856,808,914.77
  5. Step 5: Solve for x
    x = 419,856,808,914.77/749,886.66
  6. Step 6: Final answer
    x = 559,893.69

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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.