Home / 800,945.24-1,105,259.46-438,368.36

Finding the Fourth Proportional to 800,945.24, 1,105,259.46 and 438,368.36

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Solution

The fourth proportional to 800,945.24, 1,105,259.46 and 438,368.36 is: 604,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,945.24 : 1,105,259.46 = 438,368.36 : x
  2. Step 2: Convert to fraction form
    800,945.24/1,105,259.46 = 438,368.36/x
  3. Step 3: Cross multiply
    800,945.24x = 1,105,259.46 × 438,368.36
  4. Step 4: Simplify right side
    800,945.24x = 484,510,776,854.69
  5. Step 5: Solve for x
    x = 484,510,776,854.69/800,945.24
  6. Step 6: Final answer
    x = 604,923.72

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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.