Home / 681,844.10-940,901.52-375,903.78

Finding the Fourth Proportional to 681,844.10, 940,901.52 and 375,903.78

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Solution

The fourth proportional to 681,844.10, 940,901.52 and 375,903.78 is: 518,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,844.10 : 940,901.52 = 375,903.78 : x
  2. Step 2: Convert to fraction form
    681,844.10/940,901.52 = 375,903.78/x
  3. Step 3: Cross multiply
    681,844.10x = 940,901.52 × 375,903.78
  4. Step 4: Simplify right side
    681,844.10x = 353,688,437,975.75
  5. Step 5: Solve for x
    x = 353,688,437,975.75/681,844.10
  6. Step 6: Final answer
    x = 518,723.32

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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.