Home / 1,219,467.76-1,829,059.13-489,961.40

Finding the Fourth Proportional to 1,219,467.76, 1,829,059.13 and 489,961.40

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Solution

The fourth proportional to 1,219,467.76, 1,829,059.13 and 489,961.40 is: 734,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,467.76 : 1,829,059.13 = 489,961.40 : x
  2. Step 2: Convert to fraction form
    1,219,467.76/1,829,059.13 = 489,961.40/x
  3. Step 3: Cross multiply
    1,219,467.76x = 1,829,059.13 × 489,961.40
  4. Step 4: Simplify right side
    1,219,467.76x = 896,168,375,059.10
  5. Step 5: Solve for x
    x = 896,168,375,059.10/1,219,467.76
  6. Step 6: Final answer
    x = 734,884.84

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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.