Home / 856,422.46-1,285,430.73-436,013.02

Finding the Fourth Proportional to 856,422.46, 1,285,430.73 and 436,013.02

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Solution

The fourth proportional to 856,422.46, 1,285,430.73 and 436,013.02 is: 654,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,422.46 : 1,285,430.73 = 436,013.02 : x
  2. Step 2: Convert to fraction form
    856,422.46/1,285,430.73 = 436,013.02/x
  3. Step 3: Cross multiply
    856,422.46x = 1,285,430.73 × 436,013.02
  4. Step 4: Simplify right side
    856,422.46x = 560,464,534,588.11
  5. Step 5: Solve for x
    x = 560,464,534,588.11/856,422.46
  6. Step 6: Final answer
    x = 654,425.31

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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.