Finding the Fourth Proportional to 1,210,829.11, 1,671,015.98 and 694,579.21
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Solution
The fourth proportional to 1,210,829.11, 1,671,015.98 and 694,579.21 is: 958,560.50
Step by Step Solution
- Step 1: Write the proportion equation
1,210,829.11 : 1,671,015.98 = 694,579.21 : x - Step 2: Convert to fraction form
1,210,829.11/1,671,015.98 = 694,579.21/x - Step 3: Cross multiply
1,210,829.11x = 1,671,015.98 × 694,579.21 - Step 4: Simplify right side
1,210,829.11x = 1,160,652,959,285.78 - Step 5: Solve for x
x = 1,160,652,959,285.78/1,210,829.11 - Step 6: Final answer
x = 958,560.50
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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.