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Finding the Fourth Proportional to 635,748.40, 877,118.80 and 360,068.68

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Solution

The fourth proportional to 635,748.40, 877,118.80 and 360,068.68 is: 496,773.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,748.40 : 877,118.80 = 360,068.68 : x
  2. Step 2: Convert to fraction form
    635,748.40/877,118.80 = 360,068.68/x
  3. Step 3: Cross multiply
    635,748.40x = 877,118.80 × 360,068.68
  4. Step 4: Simplify right side
    635,748.40x = 315,823,008,519.18
  5. Step 5: Solve for x
    x = 315,823,008,519.18/635,748.40
  6. Step 6: Final answer
    x = 496,773.58

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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.