Home / 1,123,245.70-1,553,065.05-981,528.10

Finding the Fourth Proportional to 1,123,245.70, 1,553,065.05 and 981,528.10

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Solution

The fourth proportional to 1,123,245.70, 1,553,065.05 and 981,528.10 is: 1,357,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,245.70 : 1,553,065.05 = 981,528.10 : x
  2. Step 2: Convert to fraction form
    1,123,245.70/1,553,065.05 = 981,528.10/x
  3. Step 3: Cross multiply
    1,123,245.70x = 1,553,065.05 × 981,528.10
  4. Step 4: Simplify right side
    1,123,245.70x = 1,524,376,987,702.91
  5. Step 5: Solve for x
    x = 1,524,376,987,702.91/1,123,245.70
  6. Step 6: Final answer
    x = 1,357,118.03

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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.