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Finding the Fourth Proportional to 655,316.93, 983,328.51 and 276,500.21

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Solution

The fourth proportional to 655,316.93, 983,328.51 and 276,500.21 is: 414,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,316.93 : 983,328.51 = 276,500.21 : x
  2. Step 2: Convert to fraction form
    655,316.93/983,328.51 = 276,500.21/x
  3. Step 3: Cross multiply
    655,316.93x = 983,328.51 × 276,500.21
  4. Step 4: Simplify right side
    655,316.93x = 271,890,539,513.99
  5. Step 5: Solve for x
    x = 271,890,539,513.99/655,316.93
  6. Step 6: Final answer
    x = 414,899.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.