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Finding the Fourth Proportional to 478,292.86, 717,480.60 and 123,303.88

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Solution

The fourth proportional to 478,292.86, 717,480.60 and 123,303.88 is: 184,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,292.86 : 717,480.60 = 123,303.88 : x
  2. Step 2: Convert to fraction form
    478,292.86/717,480.60 = 123,303.88/x
  3. Step 3: Cross multiply
    478,292.86x = 717,480.60 × 123,303.88
  4. Step 4: Simplify right side
    478,292.86x = 88,468,139,548.64
  5. Step 5: Solve for x
    x = 88,468,139,548.64/478,292.86
  6. Step 6: Final answer
    x = 184,966.47

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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.