Home / 1,348,980.36-1,860,711.39-864,778.56

Finding the Fourth Proportional to 1,348,980.36, 1,860,711.39 and 864,778.56

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Solution

The fourth proportional to 1,348,980.36, 1,860,711.39 and 864,778.56 is: 1,192,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,980.36 : 1,860,711.39 = 864,778.56 : x
  2. Step 2: Convert to fraction form
    1,348,980.36/1,860,711.39 = 864,778.56/x
  3. Step 3: Cross multiply
    1,348,980.36x = 1,860,711.39 × 864,778.56
  4. Step 4: Simplify right side
    1,348,980.36x = 1,609,103,316,419.80
  5. Step 5: Solve for x
    x = 1,609,103,316,419.80/1,348,980.36
  6. Step 6: Final answer
    x = 1,192,829.31

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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.