Home / 646,742.40-970,113.60-197,462.40

Finding the Fourth Proportional to 646,742.40, 970,113.60 and 197,462.40

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Solution

The fourth proportional to 646,742.40, 970,113.60 and 197,462.40 is: 296,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,742.40 : 970,113.60 = 197,462.40 : x
  2. Step 2: Convert to fraction form
    646,742.40/970,113.60 = 197,462.40/x
  3. Step 3: Cross multiply
    646,742.40x = 970,113.60 × 197,462.40
  4. Step 4: Simplify right side
    646,742.40x = 191,560,959,728.64
  5. Step 5: Solve for x
    x = 191,560,959,728.64/646,742.40
  6. Step 6: Final answer
    x = 296,193.60

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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.