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Finding the Fourth Proportional to 705.81, 973.35 and 530.85

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Solution

The fourth proportional to 705.81, 973.35 and 530.85 is: 732.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.81 : 973.35 = 530.85 : x
  2. Step 2: Convert to fraction form
    705.81/973.35 = 530.85/x
  3. Step 3: Cross multiply
    705.81x = 973.35 × 530.85
  4. Step 4: Simplify right side
    705.81x = 516,702.85
  5. Step 5: Solve for x
    x = 516,702.85/705.81
  6. Step 6: Final answer
    x = 732.07

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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.