Home / 739,969.05-1,021,157.25-400,437.30

Finding the Fourth Proportional to 739,969.05, 1,021,157.25 and 400,437.30

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Solution

The fourth proportional to 739,969.05, 1,021,157.25 and 400,437.30 is: 552,603.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,969.05 : 1,021,157.25 = 400,437.30 : x
  2. Step 2: Convert to fraction form
    739,969.05/1,021,157.25 = 400,437.30/x
  3. Step 3: Cross multiply
    739,969.05x = 1,021,157.25 × 400,437.30
  4. Step 4: Simplify right side
    739,969.05x = 408,909,452,065.43
  5. Step 5: Solve for x
    x = 408,909,452,065.43/739,969.05
  6. Step 6: Final answer
    x = 552,603.45

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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.