Home / 548,742.90-823,114.35-312,546.90

Finding the Fourth Proportional to 548,742.90, 823,114.35 and 312,546.90

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Solution

The fourth proportional to 548,742.90, 823,114.35 and 312,546.90 is: 468,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,742.90 : 823,114.35 = 312,546.90 : x
  2. Step 2: Convert to fraction form
    548,742.90/823,114.35 = 312,546.90/x
  3. Step 3: Cross multiply
    548,742.90x = 823,114.35 × 312,546.90
  4. Step 4: Simplify right side
    548,742.90x = 257,261,838,438.02
  5. Step 5: Solve for x
    x = 257,261,838,438.02/548,742.90
  6. Step 6: Final answer
    x = 468,820.35

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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.