Home / 739,017.25-1,019,844.09-399,485.50

Finding the Fourth Proportional to 739,017.25, 1,019,844.09 and 399,485.50

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Solution

The fourth proportional to 739,017.25, 1,019,844.09 and 399,485.50 is: 551,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,017.25 : 1,019,844.09 = 399,485.50 : x
  2. Step 2: Convert to fraction form
    739,017.25/1,019,844.09 = 399,485.50/x
  3. Step 3: Cross multiply
    739,017.25x = 1,019,844.09 × 399,485.50
  4. Step 4: Simplify right side
    739,017.25x = 407,412,923,666.09
  5. Step 5: Solve for x
    x = 407,412,923,666.09/739,017.25
  6. Step 6: Final answer
    x = 551,290.14

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1.5x scale

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.