Home / 635,890.20-877,528.27-349,428.74

Finding the Fourth Proportional to 635,890.20, 877,528.27 and 349,428.74

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Solution

The fourth proportional to 635,890.20, 877,528.27 and 349,428.74 is: 482,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,890.20 : 877,528.27 = 349,428.74 : x
  2. Step 2: Convert to fraction form
    635,890.20/877,528.27 = 349,428.74/x
  3. Step 3: Cross multiply
    635,890.20x = 877,528.27 × 349,428.74
  4. Step 4: Simplify right side
    635,890.20x = 306,633,597,700.48
  5. Step 5: Solve for x
    x = 306,633,597,700.48/635,890.20
  6. Step 6: Final answer
    x = 482,211.55

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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.