Home / 1,048,063.20-1,571,806.80-289,724.64

Finding the Fourth Proportional to 1,048,063.20, 1,571,806.80 and 289,724.64

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Solution

The fourth proportional to 1,048,063.20, 1,571,806.80 and 289,724.64 is: 434,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,063.20 : 1,571,806.80 = 289,724.64 : x
  2. Step 2: Convert to fraction form
    1,048,063.20/1,571,806.80 = 289,724.64/x
  3. Step 3: Cross multiply
    1,048,063.20x = 1,571,806.80 × 289,724.64
  4. Step 4: Simplify right side
    1,048,063.20x = 455,391,159,279.55
  5. Step 5: Solve for x
    x = 455,391,159,279.55/1,048,063.20
  6. Step 6: Final answer
    x = 434,507.35

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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.