Home / 465,317.85-642,063.36-290,867.65

Finding the Fourth Proportional to 465,317.85, 642,063.36 and 290,867.65

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Solution

The fourth proportional to 465,317.85, 642,063.36 and 290,867.65 is: 401,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,317.85 : 642,063.36 = 290,867.65 : x
  2. Step 2: Convert to fraction form
    465,317.85/642,063.36 = 290,867.65/x
  3. Step 3: Cross multiply
    465,317.85x = 642,063.36 × 290,867.65
  4. Step 4: Simplify right side
    465,317.85x = 186,755,458,523.77
  5. Step 5: Solve for x
    x = 186,755,458,523.77/465,317.85
  6. Step 6: Final answer
    x = 401,350.30

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1.5x scale

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.