Home / 828,373.44-1,240,936.26-429,276

Finding the Fourth Proportional to 828,373.44, 1,240,936.26 and 429,276

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Solution

The fourth proportional to 828,373.44, 1,240,936.26 and 429,276 is: 643,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,373.44 : 1,240,936.26 = 429,276 : x
  2. Step 2: Convert to fraction form
    828,373.44/1,240,936.26 = 429,276/x
  3. Step 3: Cross multiply
    828,373.44x = 1,240,936.26 × 429,276
  4. Step 4: Simplify right side
    828,373.44x = 532,704,153,947.76
  5. Step 5: Solve for x
    x = 532,704,153,947.76/828,373.44
  6. Step 6: Final answer
    x = 643,072.47

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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.