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Finding the Fourth Proportional to 668,660.78, 922,748.28 and 362,743.22

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Solution

The fourth proportional to 668,660.78, 922,748.28 and 362,743.22 is: 500,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,660.78 : 922,748.28 = 362,743.22 : x
  2. Step 2: Convert to fraction form
    668,660.78/922,748.28 = 362,743.22/x
  3. Step 3: Cross multiply
    668,660.78x = 922,748.28 × 362,743.22
  4. Step 4: Simplify right side
    668,660.78x = 334,720,682,336.66
  5. Step 5: Solve for x
    x = 334,720,682,336.66/668,660.78
  6. Step 6: Final answer
    x = 500,583.69

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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.