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Finding the Fourth Proportional to 705.60, 973.46 and 539.56

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Solution

The fourth proportional to 705.60, 973.46 and 539.56 is: 744.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.60 : 973.46 = 539.56 : x
  2. Step 2: Convert to fraction form
    705.60/973.46 = 539.56/x
  3. Step 3: Cross multiply
    705.60x = 973.46 × 539.56
  4. Step 4: Simplify right side
    705.60x = 525,240.08
  5. Step 5: Solve for x
    x = 525,240.08/705.60
  6. Step 6: Final answer
    x = 744.39

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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.