Home / 461,865.36-637,139.40-280,529.04

Finding the Fourth Proportional to 461,865.36, 637,139.40 and 280,529.04

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Solution

The fourth proportional to 461,865.36, 637,139.40 and 280,529.04 is: 386,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,865.36 : 637,139.40 = 280,529.04 : x
  2. Step 2: Convert to fraction form
    461,865.36/637,139.40 = 280,529.04/x
  3. Step 3: Cross multiply
    461,865.36x = 637,139.40 × 280,529.04
  4. Step 4: Simplify right side
    461,865.36x = 178,736,104,228.18
  5. Step 5: Solve for x
    x = 178,736,104,228.18/461,865.36
  6. Step 6: Final answer
    x = 386,987.46

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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.