Home / 810,589.62-1,118,671.59-448,005.68

Finding the Fourth Proportional to 810,589.62, 1,118,671.59 and 448,005.68

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Solution

The fourth proportional to 810,589.62, 1,118,671.59 and 448,005.68 is: 618,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,589.62 : 1,118,671.59 = 448,005.68 : x
  2. Step 2: Convert to fraction form
    810,589.62/1,118,671.59 = 448,005.68/x
  3. Step 3: Cross multiply
    810,589.62x = 1,118,671.59 × 448,005.68
  4. Step 4: Simplify right side
    810,589.62x = 501,171,220,781.27
  5. Step 5: Solve for x
    x = 501,171,220,781.27/810,589.62
  6. Step 6: Final answer
    x = 618,279.84

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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.