Home / 989,410.82-1,365,420.44-581,506.76

Finding the Fourth Proportional to 989,410.82, 1,365,420.44 and 581,506.76

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Solution

The fourth proportional to 989,410.82, 1,365,420.44 and 581,506.76 is: 802,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,410.82 : 1,365,420.44 = 581,506.76 : x
  2. Step 2: Convert to fraction form
    989,410.82/1,365,420.44 = 581,506.76/x
  3. Step 3: Cross multiply
    989,410.82x = 1,365,420.44 × 581,506.76
  4. Step 4: Simplify right side
    989,410.82x = 794,001,220,969.49
  5. Step 5: Solve for x
    x = 794,001,220,969.49/989,410.82
  6. Step 6: Final answer
    x = 802,499.03

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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.