Home / 920,838.02-1,381,125.81-289,735.43

Finding the Fourth Proportional to 920,838.02, 1,381,125.81 and 289,735.43

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Solution

The fourth proportional to 920,838.02, 1,381,125.81 and 289,735.43 is: 434,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,838.02 : 1,381,125.81 = 289,735.43 : x
  2. Step 2: Convert to fraction form
    920,838.02/1,381,125.81 = 289,735.43/x
  3. Step 3: Cross multiply
    920,838.02x = 1,381,125.81 × 289,735.43
  4. Step 4: Simplify right side
    920,838.02x = 400,161,080,444.45
  5. Step 5: Solve for x
    x = 400,161,080,444.45/920,838.02
  6. Step 6: Final answer
    x = 434,561.86

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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.