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Finding the Fourth Proportional to 661,711.60, 993,085.80 and 306,769.60

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Solution

The fourth proportional to 661,711.60, 993,085.80 and 306,769.60 is: 460,394.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,711.60 : 993,085.80 = 306,769.60 : x
  2. Step 2: Convert to fraction form
    661,711.60/993,085.80 = 306,769.60/x
  3. Step 3: Cross multiply
    661,711.60x = 993,085.80 × 306,769.60
  4. Step 4: Simplify right side
    661,711.60x = 304,648,533,631.68
  5. Step 5: Solve for x
    x = 304,648,533,631.68/661,711.60
  6. Step 6: Final answer
    x = 460,394.73

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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.