Home / 1,262,406.40-1,893,609.60-315,777.12

Finding the Fourth Proportional to 1,262,406.40, 1,893,609.60 and 315,777.12

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Solution

The fourth proportional to 1,262,406.40, 1,893,609.60 and 315,777.12 is: 473,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,406.40 : 1,893,609.60 = 315,777.12 : x
  2. Step 2: Convert to fraction form
    1,262,406.40/1,893,609.60 = 315,777.12/x
  3. Step 3: Cross multiply
    1,262,406.40x = 1,893,609.60 × 315,777.12
  4. Step 4: Simplify right side
    1,262,406.40x = 597,958,585,892.35
  5. Step 5: Solve for x
    x = 597,958,585,892.35/1,262,406.40
  6. Step 6: Final answer
    x = 473,665.68

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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.