Home / 800,031.40-1,200,048.28-326,716.79

Finding the Fourth Proportional to 800,031.40, 1,200,048.28 and 326,716.79

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Solution

The fourth proportional to 800,031.40, 1,200,048.28 and 326,716.79 is: 490,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,031.40 : 1,200,048.28 = 326,716.79 : x
  2. Step 2: Convert to fraction form
    800,031.40/1,200,048.28 = 326,716.79/x
  3. Step 3: Cross multiply
    800,031.40x = 1,200,048.28 × 326,716.79
  4. Step 4: Simplify right side
    800,031.40x = 392,075,915,069.59
  5. Step 5: Solve for x
    x = 392,075,915,069.59/800,031.40
  6. Step 6: Final answer
    x = 490,075.66

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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.