Home / 515,815.36-711,642.72-337,071.04

Finding the Fourth Proportional to 515,815.36, 711,642.72 and 337,071.04

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Solution

The fourth proportional to 515,815.36, 711,642.72 and 337,071.04 is: 465,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,815.36 : 711,642.72 = 337,071.04 : x
  2. Step 2: Convert to fraction form
    515,815.36/711,642.72 = 337,071.04/x
  3. Step 3: Cross multiply
    515,815.36x = 711,642.72 × 337,071.04
  4. Step 4: Simplify right side
    515,815.36x = 239,874,151,738.83
  5. Step 5: Solve for x
    x = 239,874,151,738.83/515,815.36
  6. Step 6: Final answer
    x = 465,038.79

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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.