Home / 1,865,021.40-2,797,532.10-978,442.20

Finding the Fourth Proportional to 1,865,021.40, 2,797,532.10 and 978,442.20

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Solution

The fourth proportional to 1,865,021.40, 2,797,532.10 and 978,442.20 is: 1,467,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,021.40 : 2,797,532.10 = 978,442.20 : x
  2. Step 2: Convert to fraction form
    1,865,021.40/2,797,532.10 = 978,442.20/x
  3. Step 3: Cross multiply
    1,865,021.40x = 2,797,532.10 × 978,442.20
  4. Step 4: Simplify right side
    1,865,021.40x = 2,737,223,462,494.62
  5. Step 5: Solve for x
    x = 2,737,223,462,494.62/1,865,021.40
  6. Step 6: Final answer
    x = 1,467,663.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.