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Finding the Fourth Proportional to 543,030.15, 749,386.79 and 301,335.22

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Solution

The fourth proportional to 543,030.15, 749,386.79 and 301,335.22 is: 415,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,030.15 : 749,386.79 = 301,335.22 : x
  2. Step 2: Convert to fraction form
    543,030.15/749,386.79 = 301,335.22/x
  3. Step 3: Cross multiply
    543,030.15x = 749,386.79 × 301,335.22
  4. Step 4: Simplify right side
    543,030.15x = 225,816,633,229.74
  5. Step 5: Solve for x
    x = 225,816,633,229.74/543,030.15
  6. Step 6: Final answer
    x = 415,845.48

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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.