Home / 714,600.45-1,072,678.28-399,672.45

Finding the Fourth Proportional to 714,600.45, 1,072,678.28 and 399,672.45

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Solution

The fourth proportional to 714,600.45, 1,072,678.28 and 399,672.45 is: 599,943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,600.45 : 1,072,678.28 = 399,672.45 : x
  2. Step 2: Convert to fraction form
    714,600.45/1,072,678.28 = 399,672.45/x
  3. Step 3: Cross multiply
    714,600.45x = 1,072,678.28 × 399,672.45
  4. Step 4: Simplify right side
    714,600.45x = 428,719,954,231.02
  5. Step 5: Solve for x
    x = 428,719,954,231.02/714,600.45
  6. Step 6: Final answer
    x = 599,943.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.