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Finding the Fourth Proportional to 668,728.30, 922,837.35 and 366,922.30

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Solution

The fourth proportional to 668,728.30, 922,837.35 and 366,922.30 is: 506,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,728.30 : 922,837.35 = 366,922.30 : x
  2. Step 2: Convert to fraction form
    668,728.30/922,837.35 = 366,922.30/x
  3. Step 3: Cross multiply
    668,728.30x = 922,837.35 × 366,922.30
  4. Step 4: Simplify right side
    668,728.30x = 338,609,602,987.91
  5. Step 5: Solve for x
    x = 338,609,602,987.91/668,728.30
  6. Step 6: Final answer
    x = 506,348.55

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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.