Home / 989,431.44-1,365,415.83-559,702.41

Finding the Fourth Proportional to 989,431.44, 1,365,415.83 and 559,702.41

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Solution

The fourth proportional to 989,431.44, 1,365,415.83 and 559,702.41 is: 772,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,431.44 : 1,365,415.83 = 559,702.41 : x
  2. Step 2: Convert to fraction form
    989,431.44/1,365,415.83 = 559,702.41/x
  3. Step 3: Cross multiply
    989,431.44x = 1,365,415.83 × 559,702.41
  4. Step 4: Simplify right side
    989,431.44x = 764,226,530,703.15
  5. Step 5: Solve for x
    x = 764,226,530,703.15/989,431.44
  6. Step 6: Final answer
    x = 772,389.58

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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.