Home / 739,973.88-1,021,164.78-400,442.16

Finding the Fourth Proportional to 739,973.88, 1,021,164.78 and 400,442.16

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Solution

The fourth proportional to 739,973.88, 1,021,164.78 and 400,442.16 is: 552,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,973.88 : 1,021,164.78 = 400,442.16 : x
  2. Step 2: Convert to fraction form
    739,973.88/1,021,164.78 = 400,442.16/x
  3. Step 3: Cross multiply
    739,973.88x = 1,021,164.78 × 400,442.16
  4. Step 4: Simplify right side
    739,973.88x = 408,917,430,219.13
  5. Step 5: Solve for x
    x = 408,917,430,219.13/739,973.88
  6. Step 6: Final answer
    x = 552,610.63

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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.