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Finding the Fourth Proportional to 671,621.60, 1,005,099.60 and 461,669.60

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Solution

The fourth proportional to 671,621.60, 1,005,099.60 and 461,669.60 is: 690,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,621.60 : 1,005,099.60 = 461,669.60 : x
  2. Step 2: Convert to fraction form
    671,621.60/1,005,099.60 = 461,669.60/x
  3. Step 3: Cross multiply
    671,621.60x = 1,005,099.60 × 461,669.60
  4. Step 4: Simplify right side
    671,621.60x = 464,023,930,292.16
  5. Step 5: Solve for x
    x = 464,023,930,292.16/671,621.60
  6. Step 6: Final answer
    x = 690,900.84

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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.