Home / 1,259,756.40-1,889,080.56-460,830.72

Finding the Fourth Proportional to 1,259,756.40, 1,889,080.56 and 460,830.72

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Solution

The fourth proportional to 1,259,756.40, 1,889,080.56 and 460,830.72 is: 691,043.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,756.40 : 1,889,080.56 = 460,830.72 : x
  2. Step 2: Convert to fraction form
    1,259,756.40/1,889,080.56 = 460,830.72/x
  3. Step 3: Cross multiply
    1,259,756.40x = 1,889,080.56 × 460,830.72
  4. Step 4: Simplify right side
    1,259,756.40x = 870,546,354,602.80
  5. Step 5: Solve for x
    x = 870,546,354,602.80/1,259,756.40
  6. Step 6: Final answer
    x = 691,043.41

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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.