Home / 843,009.80-1,263,923.40-310,461.80

Finding the Fourth Proportional to 843,009.80, 1,263,923.40 and 310,461.80

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Solution

The fourth proportional to 843,009.80, 1,263,923.40 and 310,461.80 is: 465,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,009.80 : 1,263,923.40 = 310,461.80 : x
  2. Step 2: Convert to fraction form
    843,009.80/1,263,923.40 = 310,461.80/x
  3. Step 3: Cross multiply
    843,009.80x = 1,263,923.40 × 310,461.80
  4. Step 4: Simplify right side
    843,009.80x = 392,399,933,826.12
  5. Step 5: Solve for x
    x = 392,399,933,826.12/843,009.80
  6. Step 6: Final answer
    x = 465,474.94

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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.