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Finding the Fourth Proportional to 598,847.70, 898,271.55 and 386,271.30

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Solution

The fourth proportional to 598,847.70, 898,271.55 and 386,271.30 is: 579,406.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,847.70 : 898,271.55 = 386,271.30 : x
  2. Step 2: Convert to fraction form
    598,847.70/898,271.55 = 386,271.30/x
  3. Step 3: Cross multiply
    598,847.70x = 898,271.55 × 386,271.30
  4. Step 4: Simplify right side
    598,847.70x = 346,976,519,371.52
  5. Step 5: Solve for x
    x = 346,976,519,371.52/598,847.70
  6. Step 6: Final answer
    x = 579,406.95

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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.