Home / 349,784.45-521,948.61-312,085.37

Finding the Fourth Proportional to 349,784.45, 521,948.61 and 312,085.37

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Solution

The fourth proportional to 349,784.45, 521,948.61 and 312,085.37 is: 465,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,784.45 : 521,948.61 = 312,085.37 : x
  2. Step 2: Convert to fraction form
    349,784.45/521,948.61 = 312,085.37/x
  3. Step 3: Cross multiply
    349,784.45x = 521,948.61 × 312,085.37
  4. Step 4: Simplify right side
    349,784.45x = 162,892,525,072.84
  5. Step 5: Solve for x
    x = 162,892,525,072.84/349,784.45
  6. Step 6: Final answer
    x = 465,694.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.