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Finding the Fourth Proportional to 550,484.96, 759,630.20 and 305,482.87

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Solution

The fourth proportional to 550,484.96, 759,630.20 and 305,482.87 is: 421,544.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,484.96 : 759,630.20 = 305,482.87 : x
  2. Step 2: Convert to fraction form
    550,484.96/759,630.20 = 305,482.87/x
  3. Step 3: Cross multiply
    550,484.96x = 759,630.20 × 305,482.87
  4. Step 4: Simplify right side
    550,484.96x = 232,054,013,634.67
  5. Step 5: Solve for x
    x = 232,054,013,634.67/550,484.96
  6. Step 6: Final answer
    x = 421,544.69

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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.