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Finding the Fourth Proportional to 845.18, 1,267.14 and 570.60

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Solution

The fourth proportional to 845.18, 1,267.14 and 570.60 is: 855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.18 : 1,267.14 = 570.60 : x
  2. Step 2: Convert to fraction form
    845.18/1,267.14 = 570.60/x
  3. Step 3: Cross multiply
    845.18x = 1,267.14 × 570.60
  4. Step 4: Simplify right side
    845.18x = 723,030.08
  5. Step 5: Solve for x
    x = 723,030.08/845.18
  6. Step 6: Final answer
    x = 855.47

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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.