Home / 738,986.59-1,019,801.03-399,454.84

Finding the Fourth Proportional to 738,986.59, 1,019,801.03 and 399,454.84

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Solution

The fourth proportional to 738,986.59, 1,019,801.03 and 399,454.84 is: 551,247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,986.59 : 1,019,801.03 = 399,454.84 : x
  2. Step 2: Convert to fraction form
    738,986.59/1,019,801.03 = 399,454.84/x
  3. Step 3: Cross multiply
    738,986.59x = 1,019,801.03 × 399,454.84
  4. Step 4: Simplify right side
    738,986.59x = 407,364,450,174.21
  5. Step 5: Solve for x
    x = 407,364,450,174.21/738,986.59
  6. Step 6: Final answer
    x = 551,247.42

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Double scale
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Similar ratio
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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.