Home / 349,782.45-521,945.63-312,083.37

Finding the Fourth Proportional to 349,782.45, 521,945.63 and 312,083.37

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Solution

The fourth proportional to 349,782.45, 521,945.63 and 312,083.37 is: 465,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,782.45 : 521,945.63 = 312,083.37 : x
  2. Step 2: Convert to fraction form
    349,782.45/521,945.63 = 312,083.37/x
  3. Step 3: Cross multiply
    349,782.45x = 521,945.63 × 312,083.37
  4. Step 4: Simplify right side
    349,782.45x = 162,890,549,606.76
  5. Step 5: Solve for x
    x = 162,890,549,606.76/349,782.45
  6. Step 6: Final answer
    x = 465,691.03

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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.