Home / 845,140.80-1,269,023.40-490,846.80

Finding the Fourth Proportional to 845,140.80, 1,269,023.40 and 490,846.80

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Solution

The fourth proportional to 845,140.80, 1,269,023.40 and 490,846.80 is: 737,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,140.80 : 1,269,023.40 = 490,846.80 : x
  2. Step 2: Convert to fraction form
    845,140.80/1,269,023.40 = 490,846.80/x
  3. Step 3: Cross multiply
    845,140.80x = 1,269,023.40 × 490,846.80
  4. Step 4: Simplify right side
    845,140.80x = 622,896,075,015.12
  5. Step 5: Solve for x
    x = 622,896,075,015.12/845,140.80
  6. Step 6: Final answer
    x = 737,032.31

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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.