Home / 1,421,080.29-2,113,343.64-1,376,228.61

Finding the Fourth Proportional to 1,421,080.29, 2,113,343.64 and 1,376,228.61

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Solution

The fourth proportional to 1,421,080.29, 2,113,343.64 and 1,376,228.61 is: 2,046,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,080.29 : 2,113,343.64 = 1,376,228.61 : x
  2. Step 2: Convert to fraction form
    1,421,080.29/2,113,343.64 = 1,376,228.61/x
  3. Step 3: Cross multiply
    1,421,080.29x = 2,113,343.64 × 1,376,228.61
  4. Step 4: Simplify right side
    1,421,080.29x = 2,908,443,980,129.54
  5. Step 5: Solve for x
    x = 2,908,443,980,129.54/1,421,080.29
  6. Step 6: Final answer
    x = 2,046,642.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.