Home / 739,022.46-1,019,851.65-399,490.68

Finding the Fourth Proportional to 739,022.46, 1,019,851.65 and 399,490.68

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Solution

The fourth proportional to 739,022.46, 1,019,851.65 and 399,490.68 is: 551,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,022.46 : 1,019,851.65 = 399,490.68 : x
  2. Step 2: Convert to fraction form
    739,022.46/1,019,851.65 = 399,490.68/x
  3. Step 3: Cross multiply
    739,022.46x = 1,019,851.65 × 399,490.68
  4. Step 4: Simplify right side
    739,022.46x = 407,421,229,157.62
  5. Step 5: Solve for x
    x = 407,421,229,157.62/739,022.46
  6. Step 6: Final answer
    x = 551,297.49

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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.