Home / 1,290,882.44-1,935,994.80-915,330.80

Finding the Fourth Proportional to 1,290,882.44, 1,935,994.80 and 915,330.80

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Solution

The fourth proportional to 1,290,882.44, 1,935,994.80 and 915,330.80 is: 1,372,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,882.44 : 1,935,994.80 = 915,330.80 : x
  2. Step 2: Convert to fraction form
    1,290,882.44/1,935,994.80 = 915,330.80/x
  3. Step 3: Cross multiply
    1,290,882.44x = 1,935,994.80 × 915,330.80
  4. Step 4: Simplify right side
    1,290,882.44x = 1,772,075,669,079.84
  5. Step 5: Solve for x
    x = 1,772,075,669,079.84/1,290,882.44
  6. Step 6: Final answer
    x = 1,372,763.01

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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.