Home / 1,274,496.21-1,911,288.99-421,410.39

Finding the Fourth Proportional to 1,274,496.21, 1,911,288.99 and 421,410.39

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Solution

The fourth proportional to 1,274,496.21, 1,911,288.99 and 421,410.39 is: 631,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,496.21 : 1,911,288.99 = 421,410.39 : x
  2. Step 2: Convert to fraction form
    1,274,496.21/1,911,288.99 = 421,410.39/x
  3. Step 3: Cross multiply
    1,274,496.21x = 1,911,288.99 × 421,410.39
  4. Step 4: Simplify right side
    1,274,496.21x = 805,437,038,678.61
  5. Step 5: Solve for x
    x = 805,437,038,678.61/1,274,496.21
  6. Step 6: Final answer
    x = 631,965.03

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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.