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Finding the Fourth Proportional to 478,302.60, 717,495.20 and 123,313.60

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Solution

The fourth proportional to 478,302.60, 717,495.20 and 123,313.60 is: 184,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,302.60 : 717,495.20 = 123,313.60 : x
  2. Step 2: Convert to fraction form
    478,302.60/717,495.20 = 123,313.60/x
  3. Step 3: Cross multiply
    478,302.60x = 717,495.20 × 123,313.60
  4. Step 4: Simplify right side
    478,302.60x = 88,476,916,094.72
  5. Step 5: Solve for x
    x = 88,476,916,094.72/478,302.60
  6. Step 6: Final answer
    x = 184,981.05

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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.