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Finding the Fourth Proportional to 607,952.64, 911,947.44 and 208,587.78

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Solution

The fourth proportional to 607,952.64, 911,947.44 and 208,587.78 is: 312,888.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,952.64 : 911,947.44 = 208,587.78 : x
  2. Step 2: Convert to fraction form
    607,952.64/911,947.44 = 208,587.78/x
  3. Step 3: Cross multiply
    607,952.64x = 911,947.44 × 208,587.78
  4. Step 4: Simplify right side
    607,952.64x = 190,221,091,986.28
  5. Step 5: Solve for x
    x = 190,221,091,986.28/607,952.64
  6. Step 6: Final answer
    x = 312,888.01

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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.