Home / 1,392,041.40-2,090,006.10-889,711.80

Finding the Fourth Proportional to 1,392,041.40, 2,090,006.10 and 889,711.80

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Solution

The fourth proportional to 1,392,041.40, 2,090,006.10 and 889,711.80 is: 1,335,810.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,041.40 : 2,090,006.10 = 889,711.80 : x
  2. Step 2: Convert to fraction form
    1,392,041.40/2,090,006.10 = 889,711.80/x
  3. Step 3: Cross multiply
    1,392,041.40x = 2,090,006.10 × 889,711.80
  4. Step 4: Simplify right side
    1,392,041.40x = 1,859,503,089,241.98
  5. Step 5: Solve for x
    x = 1,859,503,089,241.98/1,392,041.40
  6. Step 6: Final answer
    x = 1,335,810.19

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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.