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Finding the Fourth Proportional to 469,295.24, 647,457.72 and 308,237.60

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Solution

The fourth proportional to 469,295.24, 647,457.72 and 308,237.60 is: 425,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,295.24 : 647,457.72 = 308,237.60 : x
  2. Step 2: Convert to fraction form
    469,295.24/647,457.72 = 308,237.60/x
  3. Step 3: Cross multiply
    469,295.24x = 647,457.72 × 308,237.60
  4. Step 4: Simplify right side
    469,295.24x = 199,570,813,714.27
  5. Step 5: Solve for x
    x = 199,570,813,714.27/469,295.24
  6. Step 6: Final answer
    x = 425,256.42

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1.5x scale

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.