Home / 2,657,643.20-3,986,464.80-975,402.80

Finding the Fourth Proportional to 2,657,643.20, 3,986,464.80 and 975,402.80

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Solution

The fourth proportional to 2,657,643.20, 3,986,464.80 and 975,402.80 is: 1,463,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,643.20 : 3,986,464.80 = 975,402.80 : x
  2. Step 2: Convert to fraction form
    2,657,643.20/3,986,464.80 = 975,402.80/x
  3. Step 3: Cross multiply
    2,657,643.20x = 3,986,464.80 × 975,402.80
  4. Step 4: Simplify right side
    2,657,643.20x = 3,888,408,928,021.44
  5. Step 5: Solve for x
    x = 3,888,408,928,021.44/2,657,643.20
  6. Step 6: Final answer
    x = 1,463,104.20

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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.