Home / 909,131.34-1,363,703.85-403,556.40

Finding the Fourth Proportional to 909,131.34, 1,363,703.85 and 403,556.40

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Solution

The fourth proportional to 909,131.34, 1,363,703.85 and 403,556.40 is: 605,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,131.34 : 1,363,703.85 = 403,556.40 : x
  2. Step 2: Convert to fraction form
    909,131.34/1,363,703.85 = 403,556.40/x
  3. Step 3: Cross multiply
    909,131.34x = 1,363,703.85 × 403,556.40
  4. Step 4: Simplify right side
    909,131.34x = 550,331,420,207.56
  5. Step 5: Solve for x
    x = 550,331,420,207.56/909,131.34
  6. Step 6: Final answer
    x = 605,337.64

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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.