Home / 1,108,955.64-1,663,138.26-310,187.64

Finding the Fourth Proportional to 1,108,955.64, 1,663,138.26 and 310,187.64

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Solution

The fourth proportional to 1,108,955.64, 1,663,138.26 and 310,187.64 is: 465,198.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,955.64 : 1,663,138.26 = 310,187.64 : x
  2. Step 2: Convert to fraction form
    1,108,955.64/1,663,138.26 = 310,187.64/x
  3. Step 3: Cross multiply
    1,108,955.64x = 1,663,138.26 × 310,187.64
  4. Step 4: Simplify right side
    1,108,955.64x = 515,884,931,863.11
  5. Step 5: Solve for x
    x = 515,884,931,863.11/1,108,955.64
  6. Step 6: Final answer
    x = 465,198.89

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Double scale
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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.