Home / 739,747.80-1,020,905.91-417,486.06

Finding the Fourth Proportional to 739,747.80, 1,020,905.91 and 417,486.06

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Solution

The fourth proportional to 739,747.80, 1,020,905.91 and 417,486.06 is: 576,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,747.80 : 1,020,905.91 = 417,486.06 : x
  2. Step 2: Convert to fraction form
    739,747.80/1,020,905.91 = 417,486.06/x
  3. Step 3: Cross multiply
    739,747.80x = 1,020,905.91 × 417,486.06
  4. Step 4: Simplify right side
    739,747.80x = 426,213,985,996.62
  5. Step 5: Solve for x
    x = 426,213,985,996.62/739,747.80
  6. Step 6: Final answer
    x = 576,161.21

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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.