Home / 688,907.70-1,033,361.55-314,930.70

Finding the Fourth Proportional to 688,907.70, 1,033,361.55 and 314,930.70

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Solution

The fourth proportional to 688,907.70, 1,033,361.55 and 314,930.70 is: 472,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,907.70 : 1,033,361.55 = 314,930.70 : x
  2. Step 2: Convert to fraction form
    688,907.70/1,033,361.55 = 314,930.70/x
  3. Step 3: Cross multiply
    688,907.70x = 1,033,361.55 × 314,930.70
  4. Step 4: Simplify right side
    688,907.70x = 325,437,276,294.59
  5. Step 5: Solve for x
    x = 325,437,276,294.59/688,907.70
  6. Step 6: Final answer
    x = 472,396.05

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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.