Home / 905,905.04-1,250,172.88-492,469.64

Finding the Fourth Proportional to 905,905.04, 1,250,172.88 and 492,469.64

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Solution

The fourth proportional to 905,905.04, 1,250,172.88 and 492,469.64 is: 679,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,905.04 : 1,250,172.88 = 492,469.64 : x
  2. Step 2: Convert to fraction form
    905,905.04/1,250,172.88 = 492,469.64/x
  3. Step 3: Cross multiply
    905,905.04x = 1,250,172.88 × 492,469.64
  4. Step 4: Simplify right side
    905,905.04x = 615,672,180,669.33
  5. Step 5: Solve for x
    x = 615,672,180,669.33/905,905.04
  6. Step 6: Final answer
    x = 679,621.10

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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.