Home / 822,829.86-1,132,980.66-720,281.34

Finding the Fourth Proportional to 822,829.86, 1,132,980.66 and 720,281.34

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Solution

The fourth proportional to 822,829.86, 1,132,980.66 and 720,281.34 is: 991,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,829.86 : 1,132,980.66 = 720,281.34 : x
  2. Step 2: Convert to fraction form
    822,829.86/1,132,980.66 = 720,281.34/x
  3. Step 3: Cross multiply
    822,829.86x = 1,132,980.66 × 720,281.34
  4. Step 4: Simplify right side
    822,829.86x = 816,064,827,978.88
  5. Step 5: Solve for x
    x = 816,064,827,978.88/822,829.86
  6. Step 6: Final answer
    x = 991,778.33

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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.