Home / 1,219,877.12-1,683,434.38-676,021.88

Finding the Fourth Proportional to 1,219,877.12, 1,683,434.38 and 676,021.88

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Solution

The fourth proportional to 1,219,877.12, 1,683,434.38 and 676,021.88 is: 932,912.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,877.12 : 1,683,434.38 = 676,021.88 : x
  2. Step 2: Convert to fraction form
    1,219,877.12/1,683,434.38 = 676,021.88/x
  3. Step 3: Cross multiply
    1,219,877.12x = 1,683,434.38 × 676,021.88
  4. Step 4: Simplify right side
    1,219,877.12x = 1,138,038,474,424.23
  5. Step 5: Solve for x
    x = 1,138,038,474,424.23/1,219,877.12
  6. Step 6: Final answer
    x = 932,912.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.