Home / 739,187.12-1,020,079.67-399,655.37

Finding the Fourth Proportional to 739,187.12, 1,020,079.67 and 399,655.37

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Solution

The fourth proportional to 739,187.12, 1,020,079.67 and 399,655.37 is: 551,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,187.12 : 1,020,079.67 = 399,655.37 : x
  2. Step 2: Convert to fraction form
    739,187.12/1,020,079.67 = 399,655.37/x
  3. Step 3: Cross multiply
    739,187.12x = 1,020,079.67 × 399,655.37
  4. Step 4: Simplify right side
    739,187.12x = 407,680,310,844.65
  5. Step 5: Solve for x
    x = 407,680,310,844.65/739,187.12
  6. Step 6: Final answer
    x = 551,525.19

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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.