Home / 841,405.60-1,262,115.60-280,440.10

Finding the Fourth Proportional to 841,405.60, 1,262,115.60 and 280,440.10

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Solution

The fourth proportional to 841,405.60, 1,262,115.60 and 280,440.10 is: 420,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,405.60 : 1,262,115.60 = 280,440.10 : x
  2. Step 2: Convert to fraction form
    841,405.60/1,262,115.60 = 280,440.10/x
  3. Step 3: Cross multiply
    841,405.60x = 1,262,115.60 × 280,440.10
  4. Step 4: Simplify right side
    841,405.60x = 353,947,825,075.56
  5. Step 5: Solve for x
    x = 353,947,825,075.56/841,405.60
  6. Step 6: Final answer
    x = 420,662.55

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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.