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Finding the Fourth Proportional to 647,743.70, 970,303.35 and 366,932.90

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Solution

The fourth proportional to 647,743.70, 970,303.35 and 366,932.90 is: 549,656.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,743.70 : 970,303.35 = 366,932.90 : x
  2. Step 2: Convert to fraction form
    647,743.70/970,303.35 = 366,932.90/x
  3. Step 3: Cross multiply
    647,743.70x = 970,303.35 × 366,932.90
  4. Step 4: Simplify right side
    647,743.70x = 356,036,222,095.22
  5. Step 5: Solve for x
    x = 356,036,222,095.22/647,743.70
  6. Step 6: Final answer
    x = 549,656.02

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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.