Home / 1,077,131.40-1,615,697.10-911,243.40

Finding the Fourth Proportional to 1,077,131.40, 1,615,697.10 and 911,243.40

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Solution

The fourth proportional to 1,077,131.40, 1,615,697.10 and 911,243.40 is: 1,366,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,131.40 : 1,615,697.10 = 911,243.40 : x
  2. Step 2: Convert to fraction form
    1,077,131.40/1,615,697.10 = 911,243.40/x
  3. Step 3: Cross multiply
    1,077,131.40x = 1,615,697.10 × 911,243.40
  4. Step 4: Simplify right side
    1,077,131.40x = 1,472,293,318,774.14
  5. Step 5: Solve for x
    x = 1,472,293,318,774.14/1,077,131.40
  6. Step 6: Final answer
    x = 1,366,865.10

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Double scale
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Similar ratio
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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.