Home / 1,500,204.71-2,070,266.36-811,861.35

Finding the Fourth Proportional to 1,500,204.71, 2,070,266.36 and 811,861.35

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Solution

The fourth proportional to 1,500,204.71, 2,070,266.36 and 811,861.35 is: 1,120,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,204.71 : 2,070,266.36 = 811,861.35 : x
  2. Step 2: Convert to fraction form
    1,500,204.71/2,070,266.36 = 811,861.35/x
  3. Step 3: Cross multiply
    1,500,204.71x = 2,070,266.36 × 811,861.35
  4. Step 4: Simplify right side
    1,500,204.71x = 1,680,769,231,537.85
  5. Step 5: Solve for x
    x = 1,680,769,231,537.85/1,500,204.71
  6. Step 6: Final answer
    x = 1,120,359.92

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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.