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Finding the Fourth Proportional to 948,306, 1,420,960.91 and 769,941.57

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Solution

The fourth proportional to 948,306, 1,420,960.91 and 769,941.57 is: 1,153,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,306 : 1,420,960.91 = 769,941.57 : x
  2. Step 2: Convert to fraction form
    948,306/1,420,960.91 = 769,941.57/x
  3. Step 3: Cross multiply
    948,306x = 1,420,960.91 × 769,941.57
  4. Step 4: Simplify right side
    948,306x = 1,094,056,873,954.03
  5. Step 5: Solve for x
    x = 1,094,056,873,954.03/948,306
  6. Step 6: Final answer
    x = 1,153,696.04

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1.5x scale

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.