Home / 920,894.95-1,381,529.94-388,417.96

Finding the Fourth Proportional to 920,894.95, 1,381,529.94 and 388,417.96

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Solution

The fourth proportional to 920,894.95, 1,381,529.94 and 388,417.96 is: 582,706.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,894.95 : 1,381,529.94 = 388,417.96 : x
  2. Step 2: Convert to fraction form
    920,894.95/1,381,529.94 = 388,417.96/x
  3. Step 3: Cross multiply
    920,894.95x = 1,381,529.94 × 388,417.96
  4. Step 4: Simplify right side
    920,894.95x = 536,611,040,973.72
  5. Step 5: Solve for x
    x = 536,611,040,973.72/920,894.95
  6. Step 6: Final answer
    x = 582,706.03

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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.