Home / 1,132,588.72-1,562,941.02-642,647.44

Finding the Fourth Proportional to 1,132,588.72, 1,562,941.02 and 642,647.44

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Solution

The fourth proportional to 1,132,588.72, 1,562,941.02 and 642,647.44 is: 886,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,588.72 : 1,562,941.02 = 642,647.44 : x
  2. Step 2: Convert to fraction form
    1,132,588.72/1,562,941.02 = 642,647.44/x
  3. Step 3: Cross multiply
    1,132,588.72x = 1,562,941.02 × 642,647.44
  4. Step 4: Simplify right side
    1,132,588.72x = 1,004,420,045,373.99
  5. Step 5: Solve for x
    x = 1,004,420,045,373.99/1,132,588.72
  6. Step 6: Final answer
    x = 886,835.64

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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.