Home / 1,369,445.73-1,889,495.57-885,428.46

Finding the Fourth Proportional to 1,369,445.73, 1,889,495.57 and 885,428.46

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Solution

The fourth proportional to 1,369,445.73, 1,889,495.57 and 885,428.46 is: 1,221,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,445.73 : 1,889,495.57 = 885,428.46 : x
  2. Step 2: Convert to fraction form
    1,369,445.73/1,889,495.57 = 885,428.46/x
  3. Step 3: Cross multiply
    1,369,445.73x = 1,889,495.57 × 885,428.46
  4. Step 4: Simplify right side
    1,369,445.73x = 1,673,013,143,274.44
  5. Step 5: Solve for x
    x = 1,673,013,143,274.44/1,369,445.73
  6. Step 6: Final answer
    x = 1,221,671.74

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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.