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Finding the Fourth Proportional to 681,661.98, 940,700.10 and 375,750.16

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Solution

The fourth proportional to 681,661.98, 940,700.10 and 375,750.16 is: 518,538.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,661.98 : 940,700.10 = 375,750.16 : x
  2. Step 2: Convert to fraction form
    681,661.98/940,700.10 = 375,750.16/x
  3. Step 3: Cross multiply
    681,661.98x = 940,700.10 × 375,750.16
  4. Step 4: Simplify right side
    681,661.98x = 353,468,213,087.02
  5. Step 5: Solve for x
    x = 353,468,213,087.02/681,661.98
  6. Step 6: Final answer
    x = 518,538.84

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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.