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Finding the Fourth Proportional to 845,999, 1,269,330.80 and 372,352.31

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Solution

The fourth proportional to 845,999, 1,269,330.80 and 372,352.31 is: 558,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,999 : 1,269,330.80 = 372,352.31 : x
  2. Step 2: Convert to fraction form
    845,999/1,269,330.80 = 372,352.31/x
  3. Step 3: Cross multiply
    845,999x = 1,269,330.80 × 372,352.31
  4. Step 4: Simplify right side
    845,999x = 472,638,255,534.15
  5. Step 5: Solve for x
    x = 472,638,255,534.15/845,999
  6. Step 6: Final answer
    x = 558,674.72

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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.