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Finding the Fourth Proportional to 662,080.60, 993,639.30 and 307,138.60

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Solution

The fourth proportional to 662,080.60, 993,639.30 and 307,138.60 is: 460,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,080.60 : 993,639.30 = 307,138.60 : x
  2. Step 2: Convert to fraction form
    662,080.60/993,639.30 = 307,138.60/x
  3. Step 3: Cross multiply
    662,080.60x = 993,639.30 × 307,138.60
  4. Step 4: Simplify right side
    662,080.60x = 305,184,983,506.98
  5. Step 5: Solve for x
    x = 305,184,983,506.98/662,080.60
  6. Step 6: Final answer
    x = 460,948.39

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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.