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Finding the Fourth Proportional to 1,028.61, 1,419.38 and 586.50

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Solution

The fourth proportional to 1,028.61, 1,419.38 and 586.50 is: 809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.61 : 1,419.38 = 586.50 : x
  2. Step 2: Convert to fraction form
    1,028.61/1,419.38 = 586.50/x
  3. Step 3: Cross multiply
    1,028.61x = 1,419.38 × 586.50
  4. Step 4: Simplify right side
    1,028.61x = 832,466.37
  5. Step 5: Solve for x
    x = 832,466.37/1,028.61
  6. Step 6: Final answer
    x = 809.31

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.