Home / 749,617.72-1,124,426.64-217,138.96

Finding the Fourth Proportional to 749,617.72, 1,124,426.64 and 217,138.96

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Solution

The fourth proportional to 749,617.72, 1,124,426.64 and 217,138.96 is: 325,708.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,617.72 : 1,124,426.64 = 217,138.96 : x
  2. Step 2: Convert to fraction form
    749,617.72/1,124,426.64 = 217,138.96/x
  3. Step 3: Cross multiply
    749,617.72x = 1,124,426.64 × 217,138.96
  4. Step 4: Simplify right side
    749,617.72x = 244,156,831,205.89
  5. Step 5: Solve for x
    x = 244,156,831,205.89/749,617.72
  6. Step 6: Final answer
    x = 325,708.46

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Double scale
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Similar ratio
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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.