Home / 708,970.76-1,062,858.36-309,318.40

Finding the Fourth Proportional to 708,970.76, 1,062,858.36 and 309,318.40

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Solution

The fourth proportional to 708,970.76, 1,062,858.36 and 309,318.40 is: 463,716.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,970.76 : 1,062,858.36 = 309,318.40 : x
  2. Step 2: Convert to fraction form
    708,970.76/1,062,858.36 = 309,318.40/x
  3. Step 3: Cross multiply
    708,970.76x = 1,062,858.36 × 309,318.40
  4. Step 4: Simplify right side
    708,970.76x = 328,761,647,341.82
  5. Step 5: Solve for x
    x = 328,761,647,341.82/708,970.76
  6. Step 6: Final answer
    x = 463,716.79

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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.