Home / 1,262,816.36-1,894,240.96-421,368.12

Finding the Fourth Proportional to 1,262,816.36, 1,894,240.96 and 421,368.12

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Solution

The fourth proportional to 1,262,816.36, 1,894,240.96 and 421,368.12 is: 632,057.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,816.36 : 1,894,240.96 = 421,368.12 : x
  2. Step 2: Convert to fraction form
    1,262,816.36/1,894,240.96 = 421,368.12/x
  3. Step 3: Cross multiply
    1,262,816.36x = 1,894,240.96 × 421,368.12
  4. Step 4: Simplify right side
    1,262,816.36x = 798,172,752,142.20
  5. Step 5: Solve for x
    x = 798,172,752,142.20/1,262,816.36
  6. Step 6: Final answer
    x = 632,057.66

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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.