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Finding the Fourth Proportional to 578,745.60, 868,118.40 and 298,809.60

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Solution

The fourth proportional to 578,745.60, 868,118.40 and 298,809.60 is: 448,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,745.60 : 868,118.40 = 298,809.60 : x
  2. Step 2: Convert to fraction form
    578,745.60/868,118.40 = 298,809.60/x
  3. Step 3: Cross multiply
    578,745.60x = 868,118.40 × 298,809.60
  4. Step 4: Simplify right side
    578,745.60x = 259,402,111,856.64
  5. Step 5: Solve for x
    x = 259,402,111,856.64/578,745.60
  6. Step 6: Final answer
    x = 448,214.40

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Similar ratio
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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.