Home / 1,500,143.22-2,070,183.02-811,800.36

Finding the Fourth Proportional to 1,500,143.22, 2,070,183.02 and 811,800.36

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Solution

The fourth proportional to 1,500,143.22, 2,070,183.02 and 811,800.36 is: 1,120,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,143.22 : 2,070,183.02 = 811,800.36 : x
  2. Step 2: Convert to fraction form
    1,500,143.22/2,070,183.02 = 811,800.36/x
  3. Step 3: Cross multiply
    1,500,143.22x = 2,070,183.02 × 811,800.36
  4. Step 4: Simplify right side
    1,500,143.22x = 1,680,575,316,842.89
  5. Step 5: Solve for x
    x = 1,680,575,316,842.89/1,500,143.22
  6. Step 6: Final answer
    x = 1,120,276.58

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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.