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Finding the Fourth Proportional to 668,900.61, 922,820.07 and 382,266.92

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Solution

The fourth proportional to 668,900.61, 922,820.07 and 382,266.92 is: 527,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,900.61 : 922,820.07 = 382,266.92 : x
  2. Step 2: Convert to fraction form
    668,900.61/922,820.07 = 382,266.92/x
  3. Step 3: Cross multiply
    668,900.61x = 922,820.07 × 382,266.92
  4. Step 4: Simplify right side
    668,900.61x = 352,763,589,613.64
  5. Step 5: Solve for x
    x = 352,763,589,613.64/668,900.61
  6. Step 6: Final answer
    x = 527,378.18

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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.