Home / 1,214,285.32-1,821,256.86-763,632.52

Finding the Fourth Proportional to 1,214,285.32, 1,821,256.86 and 763,632.52

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Solution

The fourth proportional to 1,214,285.32, 1,821,256.86 and 763,632.52 is: 1,145,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,285.32 : 1,821,256.86 = 763,632.52 : x
  2. Step 2: Convert to fraction form
    1,214,285.32/1,821,256.86 = 763,632.52/x
  3. Step 3: Cross multiply
    1,214,285.32x = 1,821,256.86 × 763,632.52
  4. Step 4: Simplify right side
    1,214,285.32x = 1,390,770,965,569.09
  5. Step 5: Solve for x
    x = 1,390,770,965,569.09/1,214,285.32
  6. Step 6: Final answer
    x = 1,145,341.17

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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.