Home / 739,017.96-1,019,845.44-399,486.18

Finding the Fourth Proportional to 739,017.96, 1,019,845.44 and 399,486.18

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Solution

The fourth proportional to 739,017.96, 1,019,845.44 and 399,486.18 is: 551,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,017.96 : 1,019,845.44 = 399,486.18 : x
  2. Step 2: Convert to fraction form
    739,017.96/1,019,845.44 = 399,486.18/x
  3. Step 3: Cross multiply
    739,017.96x = 1,019,845.44 × 399,486.18
  4. Step 4: Simplify right side
    739,017.96x = 407,414,159,016.02
  5. Step 5: Solve for x
    x = 407,414,159,016.02/739,017.96
  6. Step 6: Final answer
    x = 551,291.28

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Double scale
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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.