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Finding the Fourth Proportional to 675,933.66, 932,724.64 and 403,947.40

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Solution

The fourth proportional to 675,933.66, 932,724.64 and 403,947.40 is: 557,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,933.66 : 932,724.64 = 403,947.40 : x
  2. Step 2: Convert to fraction form
    675,933.66/932,724.64 = 403,947.40/x
  3. Step 3: Cross multiply
    675,933.66x = 932,724.64 × 403,947.40
  4. Step 4: Simplify right side
    675,933.66x = 376,771,693,243.94
  5. Step 5: Solve for x
    x = 376,771,693,243.94/675,933.66
  6. Step 6: Final answer
    x = 557,409.28

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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.