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Finding the Fourth Proportional to 607,963.64, 911,963.98 and 208,598.76

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Solution

The fourth proportional to 607,963.64, 911,963.98 and 208,598.76 is: 312,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,963.64 : 911,963.98 = 208,598.76 : x
  2. Step 2: Convert to fraction form
    607,963.64/911,963.98 = 208,598.76/x
  3. Step 3: Cross multiply
    607,963.64x = 911,963.98 × 208,598.76
  4. Step 4: Simplify right side
    607,963.64x = 190,234,555,392.67
  5. Step 5: Solve for x
    x = 190,234,555,392.67/607,963.64
  6. Step 6: Final answer
    x = 312,904.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.