Home / 917,653.80-1,376,480.70-634,218.60

Finding the Fourth Proportional to 917,653.80, 1,376,480.70 and 634,218.60

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Solution

The fourth proportional to 917,653.80, 1,376,480.70 and 634,218.60 is: 951,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,653.80 : 1,376,480.70 = 634,218.60 : x
  2. Step 2: Convert to fraction form
    917,653.80/1,376,480.70 = 634,218.60/x
  3. Step 3: Cross multiply
    917,653.80x = 1,376,480.70 × 634,218.60
  4. Step 4: Simplify right side
    917,653.80x = 872,989,662,481.02
  5. Step 5: Solve for x
    x = 872,989,662,481.02/917,653.80
  6. Step 6: Final answer
    x = 951,327.90

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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.