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Finding the Fourth Proportional to 668,724.80, 922,832.52 and 366,918.80

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Solution

The fourth proportional to 668,724.80, 922,832.52 and 366,918.80 is: 506,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,724.80 : 922,832.52 = 366,918.80 : x
  2. Step 2: Convert to fraction form
    668,724.80/922,832.52 = 366,918.80/x
  3. Step 3: Cross multiply
    668,724.80x = 922,832.52 × 366,918.80
  4. Step 4: Simplify right side
    668,724.80x = 338,604,600,839.38
  5. Step 5: Solve for x
    x = 338,604,600,839.38/668,724.80
  6. Step 6: Final answer
    x = 506,343.72

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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.