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Finding the Fourth Proportional to 559.48, 772.30 and 544.76

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Solution

The fourth proportional to 559.48, 772.30 and 544.76 is: 751.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.48 : 772.30 = 544.76 : x
  2. Step 2: Convert to fraction form
    559.48/772.30 = 544.76/x
  3. Step 3: Cross multiply
    559.48x = 772.30 × 544.76
  4. Step 4: Simplify right side
    559.48x = 420,718.15
  5. Step 5: Solve for x
    x = 420,718.15/559.48
  6. Step 6: Final answer
    x = 751.98

Related Problems

Find fourth proportional to 279.74, 386.15 and 272.38
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.