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Finding the Fourth Proportional to 849,728.88, 1,172,667.96 and 467,751.60

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Solution

The fourth proportional to 849,728.88, 1,172,667.96 and 467,751.60 is: 645,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,728.88 : 1,172,667.96 = 467,751.60 : x
  2. Step 2: Convert to fraction form
    849,728.88/1,172,667.96 = 467,751.60/x
  3. Step 3: Cross multiply
    849,728.88x = 1,172,667.96 × 467,751.60
  4. Step 4: Simplify right side
    849,728.88x = 548,517,314,558.74
  5. Step 5: Solve for x
    x = 548,517,314,558.74/849,728.88
  6. Step 6: Final answer
    x = 645,520.39

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1.5x scale

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.