Home / 3,178,283.76-4,386,117.60-1,728,076.56

Finding the Fourth Proportional to 3,178,283.76, 4,386,117.60 and 1,728,076.56

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Solution

The fourth proportional to 3,178,283.76, 4,386,117.60 and 1,728,076.56 is: 2,384,792.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,283.76 : 4,386,117.60 = 1,728,076.56 : x
  2. Step 2: Convert to fraction form
    3,178,283.76/4,386,117.60 = 1,728,076.56/x
  3. Step 3: Cross multiply
    3,178,283.76x = 4,386,117.60 × 1,728,076.56
  4. Step 4: Simplify right side
    3,178,283.76x = 7,579,547,013,963.46
  5. Step 5: Solve for x
    x = 7,579,547,013,963.46/3,178,283.76
  6. Step 6: Final answer
    x = 2,384,792.42

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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.