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Finding the Fourth Proportional to 560.32, 776.79 and 530.70

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Solution

The fourth proportional to 560.32, 776.79 and 530.70 is: 735.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.32 : 776.79 = 530.70 : x
  2. Step 2: Convert to fraction form
    560.32/776.79 = 530.70/x
  3. Step 3: Cross multiply
    560.32x = 776.79 × 530.70
  4. Step 4: Simplify right side
    560.32x = 412,243.91
  5. Step 5: Solve for x
    x = 412,243.91/560.32
  6. Step 6: Final answer
    x = 735.73

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.