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Finding the Fourth Proportional to 668,476.78, 922,541.79 and 366,670.78

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Solution

The fourth proportional to 668,476.78, 922,541.79 and 366,670.78 is: 506,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,476.78 : 922,541.79 = 366,670.78 : x
  2. Step 2: Convert to fraction form
    668,476.78/922,541.79 = 366,670.78/x
  3. Step 3: Cross multiply
    668,476.78x = 922,541.79 × 366,670.78
  4. Step 4: Simplify right side
    668,476.78x = 338,269,117,721.90
  5. Step 5: Solve for x
    x = 338,269,117,721.90/668,476.78
  6. Step 6: Final answer
    x = 506,029.72

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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.