Home / 1,405,068.06-1,939,040.85-861,098.76

Finding the Fourth Proportional to 1,405,068.06, 1,939,040.85 and 861,098.76

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Solution

The fourth proportional to 1,405,068.06, 1,939,040.85 and 861,098.76 is: 1,188,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,068.06 : 1,939,040.85 = 861,098.76 : x
  2. Step 2: Convert to fraction form
    1,405,068.06/1,939,040.85 = 861,098.76/x
  3. Step 3: Cross multiply
    1,405,068.06x = 1,939,040.85 × 861,098.76
  4. Step 4: Simplify right side
    1,405,068.06x = 1,669,705,671,524.35
  5. Step 5: Solve for x
    x = 1,669,705,671,524.35/1,405,068.06
  6. Step 6: Final answer
    x = 1,188,345.05

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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.