Home / 1,405,927.90-1,940,181.54-761,348.80

Finding the Fourth Proportional to 1,405,927.90, 1,940,181.54 and 761,348.80

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Solution

The fourth proportional to 1,405,927.90, 1,940,181.54 and 761,348.80 is: 1,050,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,927.90 : 1,940,181.54 = 761,348.80 : x
  2. Step 2: Convert to fraction form
    1,405,927.90/1,940,181.54 = 761,348.80/x
  3. Step 3: Cross multiply
    1,405,927.90x = 1,940,181.54 × 761,348.80
  4. Step 4: Simplify right side
    1,405,927.90x = 1,477,154,887,261.15
  5. Step 5: Solve for x
    x = 1,477,154,887,261.15/1,405,927.90
  6. Step 6: Final answer
    x = 1,050,661.91

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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.