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Finding the Fourth Proportional to 607,641.01, 911,572.25 and 208,322.15

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Solution

The fourth proportional to 607,641.01, 911,572.25 and 208,322.15 is: 312,521.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,641.01 : 911,572.25 = 208,322.15 : x
  2. Step 2: Convert to fraction form
    607,641.01/911,572.25 = 208,322.15/x
  3. Step 3: Cross multiply
    607,641.01x = 911,572.25 × 208,322.15
  4. Step 4: Simplify right side
    607,641.01x = 189,900,685,400.87
  5. Step 5: Solve for x
    x = 189,900,685,400.87/607,641.01
  6. Step 6: Final answer
    x = 312,521.18

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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.