Home / 1,274,681.88-1,912,427.28-376,128

Finding the Fourth Proportional to 1,274,681.88, 1,912,427.28 and 376,128

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Solution

The fourth proportional to 1,274,681.88, 1,912,427.28 and 376,128 is: 564,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,681.88 : 1,912,427.28 = 376,128 : x
  2. Step 2: Convert to fraction form
    1,274,681.88/1,912,427.28 = 376,128/x
  3. Step 3: Cross multiply
    1,274,681.88x = 1,912,427.28 × 376,128
  4. Step 4: Simplify right side
    1,274,681.88x = 719,317,447,971.84
  5. Step 5: Solve for x
    x = 719,317,447,971.84/1,274,681.88
  6. Step 6: Final answer
    x = 564,311.35

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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.