Home / 1,500,163.19-2,070,207.69-811,819.12

Finding the Fourth Proportional to 1,500,163.19, 2,070,207.69 and 811,819.12

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Solution

The fourth proportional to 1,500,163.19, 2,070,207.69 and 811,819.12 is: 1,120,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,163.19 : 2,070,207.69 = 811,819.12 : x
  2. Step 2: Convert to fraction form
    1,500,163.19/2,070,207.69 = 811,819.12/x
  3. Step 3: Cross multiply
    1,500,163.19x = 2,070,207.69 × 811,819.12
  4. Step 4: Simplify right side
    1,500,163.19x = 1,680,634,185,398.49
  5. Step 5: Solve for x
    x = 1,680,634,185,398.49/1,500,163.19
  6. Step 6: Final answer
    x = 1,120,300.91

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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.