Home / 988,289.37-1,363,386.60-580,383.90

Finding the Fourth Proportional to 988,289.37, 1,363,386.60 and 580,383.90

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Solution

The fourth proportional to 988,289.37, 1,363,386.60 and 580,383.90 is: 800,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,289.37 : 1,363,386.60 = 580,383.90 : x
  2. Step 2: Convert to fraction form
    988,289.37/1,363,386.60 = 580,383.90/x
  3. Step 3: Cross multiply
    988,289.37x = 1,363,386.60 × 580,383.90
  4. Step 4: Simplify right side
    988,289.37x = 791,287,632,115.74
  5. Step 5: Solve for x
    x = 791,287,632,115.74/988,289.37
  6. Step 6: Final answer
    x = 800,663.91

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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.