Home / 803,564.28-1,109,082.78-463,986.36

Finding the Fourth Proportional to 803,564.28, 1,109,082.78 and 463,986.36

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Solution

The fourth proportional to 803,564.28, 1,109,082.78 and 463,986.36 is: 640,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,564.28 : 1,109,082.78 = 463,986.36 : x
  2. Step 2: Convert to fraction form
    803,564.28/1,109,082.78 = 463,986.36/x
  3. Step 3: Cross multiply
    803,564.28x = 1,109,082.78 × 463,986.36
  4. Step 4: Simplify right side
    803,564.28x = 514,599,282,030.88
  5. Step 5: Solve for x
    x = 514,599,282,030.88/803,564.28
  6. Step 6: Final answer
    x = 640,395.91

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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.