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Finding the Fourth Proportional to 497,380.40, 746,255.34 and 345,497.46

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Solution

The fourth proportional to 497,380.40, 746,255.34 and 345,497.46 is: 518,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,380.40 : 746,255.34 = 345,497.46 : x
  2. Step 2: Convert to fraction form
    497,380.40/746,255.34 = 345,497.46/x
  3. Step 3: Cross multiply
    497,380.40x = 746,255.34 × 345,497.46
  4. Step 4: Simplify right side
    497,380.40x = 257,829,321,457.41
  5. Step 5: Solve for x
    x = 257,829,321,457.41/497,380.40
  6. Step 6: Final answer
    x = 518,374.51

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1.5x scale

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.