Home / 1,098,708-1,648,072.26-388,856.40

Finding the Fourth Proportional to 1,098,708, 1,648,072.26 and 388,856.40

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Solution

The fourth proportional to 1,098,708, 1,648,072.26 and 388,856.40 is: 583,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,708 : 1,648,072.26 = 388,856.40 : x
  2. Step 2: Convert to fraction form
    1,098,708/1,648,072.26 = 388,856.40/x
  3. Step 3: Cross multiply
    1,098,708x = 1,648,072.26 × 388,856.40
  4. Step 4: Simplify right side
    1,098,708x = 640,863,445,963.46
  5. Step 5: Solve for x
    x = 640,863,445,963.46/1,098,708
  6. Step 6: Final answer
    x = 583,288.23

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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.