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Finding the Fourth Proportional to 478,292.95, 717,480.74 and 123,303.97

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Solution

The fourth proportional to 478,292.95, 717,480.74 and 123,303.97 is: 184,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,292.95 : 717,480.74 = 123,303.97 : x
  2. Step 2: Convert to fraction form
    478,292.95/717,480.74 = 123,303.97/x
  3. Step 3: Cross multiply
    478,292.95x = 717,480.74 × 123,303.97
  4. Step 4: Simplify right side
    478,292.95x = 88,468,224,383.26
  5. Step 5: Solve for x
    x = 88,468,224,383.26/478,292.95
  6. Step 6: Final answer
    x = 184,966.61

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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.