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Finding the Fourth Proportional to 403,730.40, 605,595.60 and 297,976.80

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Solution

The fourth proportional to 403,730.40, 605,595.60 and 297,976.80 is: 446,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,730.40 : 605,595.60 = 297,976.80 : x
  2. Step 2: Convert to fraction form
    403,730.40/605,595.60 = 297,976.80/x
  3. Step 3: Cross multiply
    403,730.40x = 605,595.60 × 297,976.80
  4. Step 4: Simplify right side
    403,730.40x = 180,453,438,982.08
  5. Step 5: Solve for x
    x = 180,453,438,982.08/403,730.40
  6. Step 6: Final answer
    x = 446,965.20

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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.