Home / 635,986.40-877,618.80-349,500.32

Finding the Fourth Proportional to 635,986.40, 877,618.80 and 349,500.32

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Solution

The fourth proportional to 635,986.40, 877,618.80 and 349,500.32 is: 482,287.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,986.40 : 877,618.80 = 349,500.32 : x
  2. Step 2: Convert to fraction form
    635,986.40/877,618.80 = 349,500.32/x
  3. Step 3: Cross multiply
    635,986.40x = 877,618.80 × 349,500.32
  4. Step 4: Simplify right side
    635,986.40x = 306,728,051,438.02
  5. Step 5: Solve for x
    x = 306,728,051,438.02/635,986.40
  6. Step 6: Final answer
    x = 482,287.12

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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.