Home / 679,749.30-938,078.11-373,849.34

Finding the Fourth Proportional to 679,749.30, 938,078.11 and 373,849.34

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Solution

The fourth proportional to 679,749.30, 938,078.11 and 373,849.34 is: 515,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,749.30 : 938,078.11 = 373,849.34 : x
  2. Step 2: Convert to fraction form
    679,749.30/938,078.11 = 373,849.34/x
  3. Step 3: Cross multiply
    679,749.30x = 938,078.11 × 373,849.34
  4. Step 4: Simplify right side
    679,749.30x = 350,699,882,291.95
  5. Step 5: Solve for x
    x = 350,699,882,291.95/679,749.30
  6. Step 6: Final answer
    x = 515,925.33

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1.5x scale

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.