Home / 1,557,290.40-2,335,762.80-1,276,317.60

Finding the Fourth Proportional to 1,557,290.40, 2,335,762.80 and 1,276,317.60

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Solution

The fourth proportional to 1,557,290.40, 2,335,762.80 and 1,276,317.60 is: 1,914,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,290.40 : 2,335,762.80 = 1,276,317.60 : x
  2. Step 2: Convert to fraction form
    1,557,290.40/2,335,762.80 = 1,276,317.60/x
  3. Step 3: Cross multiply
    1,557,290.40x = 2,335,762.80 × 1,276,317.60
  4. Step 4: Simplify right side
    1,557,290.40x = 2,981,175,171,065.28
  5. Step 5: Solve for x
    x = 2,981,175,171,065.28/1,557,290.40
  6. Step 6: Final answer
    x = 1,914,334.78

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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.