Home / 955,116.34-1,317,940.90-645,692.28

Finding the Fourth Proportional to 955,116.34, 1,317,940.90 and 645,692.28

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Solution

The fourth proportional to 955,116.34, 1,317,940.90 and 645,692.28 is: 890,974.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,116.34 : 1,317,940.90 = 645,692.28 : x
  2. Step 2: Convert to fraction form
    955,116.34/1,317,940.90 = 645,692.28/x
  3. Step 3: Cross multiply
    955,116.34x = 1,317,940.90 × 645,692.28
  4. Step 4: Simplify right side
    955,116.34x = 850,984,264,626.25
  5. Step 5: Solve for x
    x = 850,984,264,626.25/955,116.34
  6. Step 6: Final answer
    x = 890,974.46

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Why These Related Problems?

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