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Finding the Fourth Proportional to 635,753.97, 877,336.80 and 349,267.89

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Solution

The fourth proportional to 635,753.97, 877,336.80 and 349,267.89 is: 481,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,753.97 : 877,336.80 = 349,267.89 : x
  2. Step 2: Convert to fraction form
    635,753.97/877,336.80 = 349,267.89/x
  3. Step 3: Cross multiply
    635,753.97x = 877,336.80 × 349,267.89
  4. Step 4: Simplify right side
    635,753.97x = 306,425,572,955.35
  5. Step 5: Solve for x
    x = 306,425,572,955.35/635,753.97
  6. Step 6: Final answer
    x = 481,987.67

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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.