Home / 989,899.85-1,365,355.96-908,490.41

Finding the Fourth Proportional to 989,899.85, 1,365,355.96 and 908,490.41

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Solution

The fourth proportional to 989,899.85, 1,365,355.96 and 908,490.41 is: 1,253,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,899.85 : 1,365,355.96 = 908,490.41 : x
  2. Step 2: Convert to fraction form
    989,899.85/1,365,355.96 = 908,490.41/x
  3. Step 3: Cross multiply
    989,899.85x = 1,365,355.96 × 908,490.41
  4. Step 4: Simplify right side
    989,899.85x = 1,240,412,795,896.34
  5. Step 5: Solve for x
    x = 1,240,412,795,896.34/989,899.85
  6. Step 6: Final answer
    x = 1,253,068.98

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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.