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Finding the Fourth Proportional to 1,059.10, 1,461.49 and 622.17

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Solution

The fourth proportional to 1,059.10, 1,461.49 and 622.17 is: 858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.10 : 1,461.49 = 622.17 : x
  2. Step 2: Convert to fraction form
    1,059.10/1,461.49 = 622.17/x
  3. Step 3: Cross multiply
    1,059.10x = 1,461.49 × 622.17
  4. Step 4: Simplify right side
    1,059.10x = 909,288.20
  5. Step 5: Solve for x
    x = 909,288.20/1,059.10
  6. Step 6: Final answer
    x = 858.55

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.