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Finding the Fourth Proportional to 556.66, 830.93 and 483.76

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Solution

The fourth proportional to 556.66, 830.93 and 483.76 is: 722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.66 : 830.93 = 483.76 : x
  2. Step 2: Convert to fraction form
    556.66/830.93 = 483.76/x
  3. Step 3: Cross multiply
    556.66x = 830.93 × 483.76
  4. Step 4: Simplify right side
    556.66x = 401,970.70
  5. Step 5: Solve for x
    x = 401,970.70/556.66
  6. Step 6: Final answer
    x = 722.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.