Home / 800,941.28-1,105,289.04-438,363.68

Finding the Fourth Proportional to 800,941.28, 1,105,289.04 and 438,363.68

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Solution

The fourth proportional to 800,941.28, 1,105,289.04 and 438,363.68 is: 604,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,941.28 : 1,105,289.04 = 438,363.68 : x
  2. Step 2: Convert to fraction form
    800,941.28/1,105,289.04 = 438,363.68/x
  3. Step 3: Cross multiply
    800,941.28x = 1,105,289.04 × 438,363.68
  4. Step 4: Simplify right side
    800,941.28x = 484,518,571,038.07
  5. Step 5: Solve for x
    x = 484,518,571,038.07/800,941.28
  6. Step 6: Final answer
    x = 604,936.45

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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.