Home / 1,555,475.64-2,146,708.78-910,856.12

Finding the Fourth Proportional to 1,555,475.64, 2,146,708.78 and 910,856.12

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Solution

The fourth proportional to 1,555,475.64, 2,146,708.78 and 910,856.12 is: 1,257,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,475.64 : 2,146,708.78 = 910,856.12 : x
  2. Step 2: Convert to fraction form
    1,555,475.64/2,146,708.78 = 910,856.12/x
  3. Step 3: Cross multiply
    1,555,475.64x = 2,146,708.78 × 910,856.12
  4. Step 4: Simplify right side
    1,555,475.64x = 1,955,342,830,120.73
  5. Step 5: Solve for x
    x = 1,955,342,830,120.73/1,555,475.64
  6. Step 6: Final answer
    x = 1,257,070.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.