Home / 999,539.10-1,499,307.40-325,619.28

Finding the Fourth Proportional to 999,539.10, 1,499,307.40 and 325,619.28

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Solution

The fourth proportional to 999,539.10, 1,499,307.40 and 325,619.28 is: 488,428.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,539.10 : 1,499,307.40 = 325,619.28 : x
  2. Step 2: Convert to fraction form
    999,539.10/1,499,307.40 = 325,619.28/x
  3. Step 3: Cross multiply
    999,539.10x = 1,499,307.40 × 325,619.28
  4. Step 4: Simplify right side
    999,539.10x = 488,203,396,086.67
  5. Step 5: Solve for x
    x = 488,203,396,086.67/999,539.10
  6. Step 6: Final answer
    x = 488,428.51

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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.