Home / 738,983.76-1,019,797.89-399,452.01

Finding the Fourth Proportional to 738,983.76, 1,019,797.89 and 399,452.01

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Solution

The fourth proportional to 738,983.76, 1,019,797.89 and 399,452.01 is: 551,243.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,983.76 : 1,019,797.89 = 399,452.01 : x
  2. Step 2: Convert to fraction form
    738,983.76/1,019,797.89 = 399,452.01/x
  3. Step 3: Cross multiply
    738,983.76x = 1,019,797.89 × 399,452.01
  4. Step 4: Simplify right side
    738,983.76x = 407,360,316,954.26
  5. Step 5: Solve for x
    x = 407,360,316,954.26/738,983.76
  6. Step 6: Final answer
    x = 551,243.94

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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.