Home / 648,080.15-972,120.32-174,765.56

Finding the Fourth Proportional to 648,080.15, 972,120.32 and 174,765.56

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Solution

The fourth proportional to 648,080.15, 972,120.32 and 174,765.56 is: 262,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,080.15 : 972,120.32 = 174,765.56 : x
  2. Step 2: Convert to fraction form
    648,080.15/972,120.32 = 174,765.56/x
  3. Step 3: Cross multiply
    648,080.15x = 972,120.32 × 174,765.56
  4. Step 4: Simplify right side
    648,080.15x = 169,893,147,033.12
  5. Step 5: Solve for x
    x = 169,893,147,033.12/648,080.15
  6. Step 6: Final answer
    x = 262,148.36

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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.