Home / 1,219,681.28-1,829,355.84-321,047.76

Finding the Fourth Proportional to 1,219,681.28, 1,829,355.84 and 321,047.76

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Solution

The fourth proportional to 1,219,681.28, 1,829,355.84 and 321,047.76 is: 481,527.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,681.28 : 1,829,355.84 = 321,047.76 : x
  2. Step 2: Convert to fraction form
    1,219,681.28/1,829,355.84 = 321,047.76/x
  3. Step 3: Cross multiply
    1,219,681.28x = 1,829,355.84 × 321,047.76
  4. Step 4: Simplify right side
    1,219,681.28x = 587,310,594,674.92
  5. Step 5: Solve for x
    x = 587,310,594,674.92/1,219,681.28
  6. Step 6: Final answer
    x = 481,527.92

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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.