Home / 735,490.88-1,015,087.20-449,175.68

Finding the Fourth Proportional to 735,490.88, 1,015,087.20 and 449,175.68

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Solution

The fourth proportional to 735,490.88, 1,015,087.20 and 449,175.68 is: 619,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,490.88 : 1,015,087.20 = 449,175.68 : x
  2. Step 2: Convert to fraction form
    735,490.88/1,015,087.20 = 449,175.68/x
  3. Step 3: Cross multiply
    735,490.88x = 1,015,087.20 × 449,175.68
  4. Step 4: Simplify right side
    735,490.88x = 455,952,483,319.30
  5. Step 5: Solve for x
    x = 455,952,483,319.30/735,490.88
  6. Step 6: Final answer
    x = 619,929.49

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Double scale
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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.