Home / 1,402,157.40-2,103,892.20-728,998.80

Finding the Fourth Proportional to 1,402,157.40, 2,103,892.20 and 728,998.80

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Solution

The fourth proportional to 1,402,157.40, 2,103,892.20 and 728,998.80 is: 1,093,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,157.40 : 2,103,892.20 = 728,998.80 : x
  2. Step 2: Convert to fraction form
    1,402,157.40/2,103,892.20 = 728,998.80/x
  3. Step 3: Cross multiply
    1,402,157.40x = 2,103,892.20 × 728,998.80
  4. Step 4: Simplify right side
    1,402,157.40x = 1,533,734,889,129.36
  5. Step 5: Solve for x
    x = 1,533,734,889,129.36/1,402,157.40
  6. Step 6: Final answer
    x = 1,093,839.31

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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.