Home / 1,107,430.20-1,661,145.30-634,163.40

Finding the Fourth Proportional to 1,107,430.20, 1,661,145.30 and 634,163.40

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Solution

The fourth proportional to 1,107,430.20, 1,661,145.30 and 634,163.40 is: 951,245.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,430.20 : 1,661,145.30 = 634,163.40 : x
  2. Step 2: Convert to fraction form
    1,107,430.20/1,661,145.30 = 634,163.40/x
  3. Step 3: Cross multiply
    1,107,430.20x = 1,661,145.30 × 634,163.40
  4. Step 4: Simplify right side
    1,107,430.20x = 1,053,437,551,342.02
  5. Step 5: Solve for x
    x = 1,053,437,551,342.02/1,107,430.20
  6. Step 6: Final answer
    x = 951,245.10

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Double scale
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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.