Home / 811,467.36-1,211,255.64-715,703.04

Finding the Fourth Proportional to 811,467.36, 1,211,255.64 and 715,703.04

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Solution

The fourth proportional to 811,467.36, 1,211,255.64 and 715,703.04 is: 1,068,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,467.36 : 1,211,255.64 = 715,703.04 : x
  2. Step 2: Convert to fraction form
    811,467.36/1,211,255.64 = 715,703.04/x
  3. Step 3: Cross multiply
    811,467.36x = 1,211,255.64 × 715,703.04
  4. Step 4: Simplify right side
    811,467.36x = 866,899,343,765.15
  5. Step 5: Solve for x
    x = 866,899,343,765.15/811,467.36
  6. Step 6: Final answer
    x = 1,068,310.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.