Home / 1,382,040.18-1,907,131.55-761,818.19

Finding the Fourth Proportional to 1,382,040.18, 1,907,131.55 and 761,818.19

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Solution

The fourth proportional to 1,382,040.18, 1,907,131.55 and 761,818.19 is: 1,051,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,040.18 : 1,907,131.55 = 761,818.19 : x
  2. Step 2: Convert to fraction form
    1,382,040.18/1,907,131.55 = 761,818.19/x
  3. Step 3: Cross multiply
    1,382,040.18x = 1,907,131.55 × 761,818.19
  4. Step 4: Simplify right side
    1,382,040.18x = 1,452,887,492,168.15
  5. Step 5: Solve for x
    x = 1,452,887,492,168.15/1,382,040.18
  6. Step 6: Final answer
    x = 1,051,262.85

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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.