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Finding the Fourth Proportional to 668,215.64, 922,144.17 and 362,291.19

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Solution

The fourth proportional to 668,215.64, 922,144.17 and 362,291.19 is: 499,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,215.64 : 922,144.17 = 362,291.19 : x
  2. Step 2: Convert to fraction form
    668,215.64/922,144.17 = 362,291.19/x
  3. Step 3: Cross multiply
    668,215.64x = 922,144.17 × 362,291.19
  4. Step 4: Simplify right side
    668,215.64x = 334,084,708,700.86
  5. Step 5: Solve for x
    x = 334,084,708,700.86/668,215.64
  6. Step 6: Final answer
    x = 499,965.42

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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.