Home / 738,900.03-1,019,682.20-399,367.23

Finding the Fourth Proportional to 738,900.03, 1,019,682.20 and 399,367.23

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Solution

The fourth proportional to 738,900.03, 1,019,682.20 and 399,367.23 is: 551,126.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,900.03 : 1,019,682.20 = 399,367.23 : x
  2. Step 2: Convert to fraction form
    738,900.03/1,019,682.20 = 399,367.23/x
  3. Step 3: Cross multiply
    738,900.03x = 1,019,682.20 × 399,367.23
  4. Step 4: Simplify right side
    738,900.03x = 407,227,653,697.47
  5. Step 5: Solve for x
    x = 407,227,653,697.47/738,900.03
  6. Step 6: Final answer
    x = 551,126.86

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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.