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Finding the Fourth Proportional to 1,300.04, 1,950.05 and 650.76

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Solution

The fourth proportional to 1,300.04, 1,950.05 and 650.76 is: 976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300.04 : 1,950.05 = 650.76 : x
  2. Step 2: Convert to fraction form
    1,300.04/1,950.05 = 650.76/x
  3. Step 3: Cross multiply
    1,300.04x = 1,950.05 × 650.76
  4. Step 4: Simplify right side
    1,300.04x = 1,269,011.28
  5. Step 5: Solve for x
    x = 1,269,011.28/1,300.04
  6. Step 6: Final answer
    x = 976.14

Related Problems

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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.