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Finding the Fourth Proportional to 610,623.58, 842,761.46 and 338,779.03

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Solution

The fourth proportional to 610,623.58, 842,761.46 and 338,779.03 is: 467,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,623.58 : 842,761.46 = 338,779.03 : x
  2. Step 2: Convert to fraction form
    610,623.58/842,761.46 = 338,779.03/x
  3. Step 3: Cross multiply
    610,623.58x = 842,761.46 × 338,779.03
  4. Step 4: Simplify right side
    610,623.58x = 285,509,909,940.18
  5. Step 5: Solve for x
    x = 285,509,909,940.18/610,623.58
  6. Step 6: Final answer
    x = 467,571.05

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1.5x scale

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.