Home / 1,520,111.43-2,097,547.09-908,134.66

Finding the Fourth Proportional to 1,520,111.43, 2,097,547.09 and 908,134.66

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Solution

The fourth proportional to 1,520,111.43, 2,097,547.09 and 908,134.66 is: 1,253,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,111.43 : 2,097,547.09 = 908,134.66 : x
  2. Step 2: Convert to fraction form
    1,520,111.43/2,097,547.09 = 908,134.66/x
  3. Step 3: Cross multiply
    1,520,111.43x = 2,097,547.09 × 908,134.66
  4. Step 4: Simplify right side
    1,520,111.43x = 1,904,855,219,023.58
  5. Step 5: Solve for x
    x = 1,904,855,219,023.58/1,520,111.43
  6. Step 6: Final answer
    x = 1,253,102.36

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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.