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Finding the Fourth Proportional to 656,762.30, 985,143.45 and 302,074.64

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Solution

The fourth proportional to 656,762.30, 985,143.45 and 302,074.64 is: 453,111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,762.30 : 985,143.45 = 302,074.64 : x
  2. Step 2: Convert to fraction form
    656,762.30/985,143.45 = 302,074.64/x
  3. Step 3: Cross multiply
    656,762.30x = 985,143.45 × 302,074.64
  4. Step 4: Simplify right side
    656,762.30x = 297,586,853,007.11
  5. Step 5: Solve for x
    x = 297,586,853,007.11/656,762.30
  6. Step 6: Final answer
    x = 453,111.96

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Double scale
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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.