Home / 739,009.02-1,019,833.29-399,477

Finding the Fourth Proportional to 739,009.02, 1,019,833.29 and 399,477

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Solution

The fourth proportional to 739,009.02, 1,019,833.29 and 399,477 is: 551,278.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,009.02 : 1,019,833.29 = 399,477 : x
  2. Step 2: Convert to fraction form
    739,009.02/1,019,833.29 = 399,477/x
  3. Step 3: Cross multiply
    739,009.02x = 1,019,833.29 × 399,477
  4. Step 4: Simplify right side
    739,009.02x = 407,399,943,189.33
  5. Step 5: Solve for x
    x = 407,399,943,189.33/739,009.02
  6. Step 6: Final answer
    x = 551,278.72

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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.