Home / 1,078,560.12-1,617,610.50-320,196

Finding the Fourth Proportional to 1,078,560.12, 1,617,610.50 and 320,196

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Solution

The fourth proportional to 1,078,560.12, 1,617,610.50 and 320,196 is: 480,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,560.12 : 1,617,610.50 = 320,196 : x
  2. Step 2: Convert to fraction form
    1,078,560.12/1,617,610.50 = 320,196/x
  3. Step 3: Cross multiply
    1,078,560.12x = 1,617,610.50 × 320,196
  4. Step 4: Simplify right side
    1,078,560.12x = 517,952,411,658
  5. Step 5: Solve for x
    x = 517,952,411,658/1,078,560.12
  6. Step 6: Final answer
    x = 480,225.81

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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.