Home / 987,556.48-1,362,331.20-647,977.60

Finding the Fourth Proportional to 987,556.48, 1,362,331.20 and 647,977.60

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Solution

The fourth proportional to 987,556.48, 1,362,331.20 and 647,977.60 is: 893,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,556.48 : 1,362,331.20 = 647,977.60 : x
  2. Step 2: Convert to fraction form
    987,556.48/1,362,331.20 = 647,977.60/x
  3. Step 3: Cross multiply
    987,556.48x = 1,362,331.20 × 647,977.60
  4. Step 4: Simplify right side
    987,556.48x = 882,760,101,381.12
  5. Step 5: Solve for x
    x = 882,760,101,381.12/987,556.48
  6. Step 6: Final answer
    x = 893,883.15

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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.