Home / 1,500,098.53-2,070,141.40-811,770.31

Finding the Fourth Proportional to 1,500,098.53, 2,070,141.40 and 811,770.31

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Solution

The fourth proportional to 1,500,098.53, 2,070,141.40 and 811,770.31 is: 1,120,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,098.53 : 2,070,141.40 = 811,770.31 : x
  2. Step 2: Convert to fraction form
    1,500,098.53/2,070,141.40 = 811,770.31/x
  3. Step 3: Cross multiply
    1,500,098.53x = 2,070,141.40 × 811,770.31
  4. Step 4: Simplify right side
    1,500,098.53x = 1,680,479,326,021.83
  5. Step 5: Solve for x
    x = 1,680,479,326,021.83/1,500,098.53
  6. Step 6: Final answer
    x = 1,120,245.97

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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.