Home / 817,704.62-1,128,443.06-450,224.50

Finding the Fourth Proportional to 817,704.62, 1,128,443.06 and 450,224.50

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Solution

The fourth proportional to 817,704.62, 1,128,443.06 and 450,224.50 is: 621,315.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,704.62 : 1,128,443.06 = 450,224.50 : x
  2. Step 2: Convert to fraction form
    817,704.62/1,128,443.06 = 450,224.50/x
  3. Step 3: Cross multiply
    817,704.62x = 1,128,443.06 × 450,224.50
  4. Step 4: Simplify right side
    817,704.62x = 508,052,712,466.97
  5. Step 5: Solve for x
    x = 508,052,712,466.97/817,704.62
  6. Step 6: Final answer
    x = 621,315.69

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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.