Home / 1,405,065.80-1,938,990.66-760,485.88

Finding the Fourth Proportional to 1,405,065.80, 1,938,990.66 and 760,485.88

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Solution

The fourth proportional to 1,405,065.80, 1,938,990.66 and 760,485.88 is: 1,049,470.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,065.80 : 1,938,990.66 = 760,485.88 : x
  2. Step 2: Convert to fraction form
    1,405,065.80/1,938,990.66 = 760,485.88/x
  3. Step 3: Cross multiply
    1,405,065.80x = 1,938,990.66 × 760,485.88
  4. Step 4: Simplify right side
    1,405,065.80x = 1,474,575,018,381.88
  5. Step 5: Solve for x
    x = 1,474,575,018,381.88/1,405,065.80
  6. Step 6: Final answer
    x = 1,049,470.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.