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Finding the Fourth Proportional to 1,011.01, 1,516.23 and 433.75

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Solution

The fourth proportional to 1,011.01, 1,516.23 and 433.75 is: 650.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.01 : 1,516.23 = 433.75 : x
  2. Step 2: Convert to fraction form
    1,011.01/1,516.23 = 433.75/x
  3. Step 3: Cross multiply
    1,011.01x = 1,516.23 × 433.75
  4. Step 4: Simplify right side
    1,011.01x = 657,664.76
  5. Step 5: Solve for x
    x = 657,664.76/1,011.01
  6. Step 6: Final answer
    x = 650.50

Related Problems

Find fourth proportional to 505.51, 758.12 and 216.88
Half scale
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Double scale
Find fourth proportional to 1,012.01, 1,517.73 and 434.75
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.