Home / 1,118,822.10-1,678,233.15-320,151.30

Finding the Fourth Proportional to 1,118,822.10, 1,678,233.15 and 320,151.30

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Solution

The fourth proportional to 1,118,822.10, 1,678,233.15 and 320,151.30 is: 480,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,822.10 : 1,678,233.15 = 320,151.30 : x
  2. Step 2: Convert to fraction form
    1,118,822.10/1,678,233.15 = 320,151.30/x
  3. Step 3: Cross multiply
    1,118,822.10x = 1,678,233.15 × 320,151.30
  4. Step 4: Simplify right side
    1,118,822.10x = 537,288,524,675.60
  5. Step 5: Solve for x
    x = 537,288,524,675.60/1,118,822.10
  6. Step 6: Final answer
    x = 480,226.95

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Double scale
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1.5x scale

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.