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Finding the Fourth Proportional to 665,619.84, 918,555.84 and 363,813.84

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Solution

The fourth proportional to 665,619.84, 918,555.84 and 363,813.84 is: 502,063.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,619.84 : 918,555.84 = 363,813.84 : x
  2. Step 2: Convert to fraction form
    665,619.84/918,555.84 = 363,813.84/x
  3. Step 3: Cross multiply
    665,619.84x = 918,555.84 × 363,813.84
  4. Step 4: Simplify right side
    665,619.84x = 334,183,327,404.83
  5. Step 5: Solve for x
    x = 334,183,327,404.83/665,619.84
  6. Step 6: Final answer
    x = 502,063.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.