Home / 920,655.95-1,381,712.92-388,544.27

Finding the Fourth Proportional to 920,655.95, 1,381,712.92 and 388,544.27

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Solution

The fourth proportional to 920,655.95, 1,381,712.92 and 388,544.27 is: 583,124.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,655.95 : 1,381,712.92 = 388,544.27 : x
  2. Step 2: Convert to fraction form
    920,655.95/1,381,712.92 = 388,544.27/x
  3. Step 3: Cross multiply
    920,655.95x = 1,381,712.92 × 388,544.27
  4. Step 4: Simplify right side
    920,655.95x = 536,856,629,971.04
  5. Step 5: Solve for x
    x = 536,856,629,971.04/920,655.95
  6. Step 6: Final answer
    x = 583,124.06

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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.