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Finding the Fourth Proportional to 677,718.24, 935,227.28 and 375,940.32

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Solution

The fourth proportional to 677,718.24, 935,227.28 and 375,940.32 is: 518,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,718.24 : 935,227.28 = 375,940.32 : x
  2. Step 2: Convert to fraction form
    677,718.24/935,227.28 = 375,940.32/x
  3. Step 3: Cross multiply
    677,718.24x = 935,227.28 × 375,940.32
  4. Step 4: Simplify right side
    677,718.24x = 351,589,642,915.93
  5. Step 5: Solve for x
    x = 351,589,642,915.93/677,718.24
  6. Step 6: Final answer
    x = 518,784.39

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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.