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Finding the Fourth Proportional to 506,274.64, 698,673 and 279,928.24

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Solution

The fourth proportional to 506,274.64, 698,673 and 279,928.24 is: 386,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,274.64 : 698,673 = 279,928.24 : x
  2. Step 2: Convert to fraction form
    506,274.64/698,673 = 279,928.24/x
  3. Step 3: Cross multiply
    506,274.64x = 698,673 × 279,928.24
  4. Step 4: Simplify right side
    506,274.64x = 195,578,303,225.52
  5. Step 5: Solve for x
    x = 195,578,303,225.52/506,274.64
  6. Step 6: Final answer
    x = 386,308.71

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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.