Home / 680,538.30-1,021,038.30-301,408.08

Finding the Fourth Proportional to 680,538.30, 1,021,038.30 and 301,408.08

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Solution

The fourth proportional to 680,538.30, 1,021,038.30 and 301,408.08 is: 452,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,538.30 : 1,021,038.30 = 301,408.08 : x
  2. Step 2: Convert to fraction form
    680,538.30/1,021,038.30 = 301,408.08/x
  3. Step 3: Cross multiply
    680,538.30x = 1,021,038.30 × 301,408.08
  4. Step 4: Simplify right side
    680,538.30x = 307,749,193,609.46
  5. Step 5: Solve for x
    x = 307,749,193,609.46/680,538.30
  6. Step 6: Final answer
    x = 452,214.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.