Home / 817,622.63-1,128,065.27-463,945.44

Finding the Fourth Proportional to 817,622.63, 1,128,065.27 and 463,945.44

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Solution

The fourth proportional to 817,622.63, 1,128,065.27 and 463,945.44 is: 640,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,622.63 : 1,128,065.27 = 463,945.44 : x
  2. Step 2: Convert to fraction form
    817,622.63/1,128,065.27 = 463,945.44/x
  3. Step 3: Cross multiply
    817,622.63x = 1,128,065.27 × 463,945.44
  4. Step 4: Simplify right side
    817,622.63x = 523,360,735,719.14
  5. Step 5: Solve for x
    x = 523,360,735,719.14/817,622.63
  6. Step 6: Final answer
    x = 640,100.60

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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.