Home / 1,889,679.40-2,834,907.90-628,412.20

Finding the Fourth Proportional to 1,889,679.40, 2,834,907.90 and 628,412.20

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Solution

The fourth proportional to 1,889,679.40, 2,834,907.90 and 628,412.20 is: 942,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,679.40 : 2,834,907.90 = 628,412.20 : x
  2. Step 2: Convert to fraction form
    1,889,679.40/2,834,907.90 = 628,412.20/x
  3. Step 3: Cross multiply
    1,889,679.40x = 2,834,907.90 × 628,412.20
  4. Step 4: Simplify right side
    1,889,679.40x = 1,781,490,710,236.38
  5. Step 5: Solve for x
    x = 1,781,490,710,236.38/1,889,679.40
  6. Step 6: Final answer
    x = 942,747.60

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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.