Home / 903,285.32-1,246,443.91-521,435.12

Finding the Fourth Proportional to 903,285.32, 1,246,443.91 and 521,435.12

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Solution

The fourth proportional to 903,285.32, 1,246,443.91 and 521,435.12 is: 719,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,285.32 : 1,246,443.91 = 521,435.12 : x
  2. Step 2: Convert to fraction form
    903,285.32/1,246,443.91 = 521,435.12/x
  3. Step 3: Cross multiply
    903,285.32x = 1,246,443.91 × 521,435.12
  4. Step 4: Simplify right side
    903,285.32x = 649,939,629,784.12
  5. Step 5: Solve for x
    x = 649,939,629,784.12/903,285.32
  6. Step 6: Final answer
    x = 719,528.61

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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.