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Finding the Fourth Proportional to 647,657.20, 970,173.60 and 366,846.40

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Solution

The fourth proportional to 647,657.20, 970,173.60 and 366,846.40 is: 549,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,657.20 : 970,173.60 = 366,846.40 : x
  2. Step 2: Convert to fraction form
    647,657.20/970,173.60 = 366,846.40/x
  3. Step 3: Cross multiply
    647,657.20x = 970,173.60 × 366,846.40
  4. Step 4: Simplify right side
    647,657.20x = 355,904,692,535.04
  5. Step 5: Solve for x
    x = 355,904,692,535.04/647,657.20
  6. Step 6: Final answer
    x = 549,526.34

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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.