Home / 945,200.40-1,418,722.20-472,419.60

Finding the Fourth Proportional to 945,200.40, 1,418,722.20 and 472,419.60

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Solution

The fourth proportional to 945,200.40, 1,418,722.20 and 472,419.60 is: 709,090.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,200.40 : 1,418,722.20 = 472,419.60 : x
  2. Step 2: Convert to fraction form
    945,200.40/1,418,722.20 = 472,419.60/x
  3. Step 3: Cross multiply
    945,200.40x = 1,418,722.20 × 472,419.60
  4. Step 4: Simplify right side
    945,200.40x = 670,232,174,235.12
  5. Step 5: Solve for x
    x = 670,232,174,235.12/945,200.40
  6. Step 6: Final answer
    x = 709,090.02

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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.