Home / 920,893.95-1,381,528.44-388,416.96

Finding the Fourth Proportional to 920,893.95, 1,381,528.44 and 388,416.96

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Solution

The fourth proportional to 920,893.95, 1,381,528.44 and 388,416.96 is: 582,704.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,893.95 : 1,381,528.44 = 388,416.96 : x
  2. Step 2: Convert to fraction form
    920,893.95/1,381,528.44 = 388,416.96/x
  3. Step 3: Cross multiply
    920,893.95x = 1,381,528.44 × 388,416.96
  4. Step 4: Simplify right side
    920,893.95x = 536,609,076,818.34
  5. Step 5: Solve for x
    x = 536,609,076,818.34/920,893.95
  6. Step 6: Final answer
    x = 582,704.53

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1.5x scale

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.