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Finding the Fourth Proportional to 1,246.91, 1,870.77 and 597.70

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Solution

The fourth proportional to 1,246.91, 1,870.77 and 597.70 is: 896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.91 : 1,870.77 = 597.70 : x
  2. Step 2: Convert to fraction form
    1,246.91/1,870.77 = 597.70/x
  3. Step 3: Cross multiply
    1,246.91x = 1,870.77 × 597.70
  4. Step 4: Simplify right side
    1,246.91x = 1,118,149.88
  5. Step 5: Solve for x
    x = 1,118,149.88/1,246.91
  6. Step 6: Final answer
    x = 896.74

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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.