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Finding the Fourth Proportional to 471,124.88, 650,093.30 and 318,495.20

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Solution

The fourth proportional to 471,124.88, 650,093.30 and 318,495.20 is: 439,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,124.88 : 650,093.30 = 318,495.20 : x
  2. Step 2: Convert to fraction form
    471,124.88/650,093.30 = 318,495.20/x
  3. Step 3: Cross multiply
    471,124.88x = 650,093.30 × 318,495.20
  4. Step 4: Simplify right side
    471,124.88x = 207,051,595,602.16
  5. Step 5: Solve for x
    x = 207,051,595,602.16/471,124.88
  6. Step 6: Final answer
    x = 439,483.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.