Finding the Fourth Proportional to 689,406.12, 950,991.91 and 413,692.65
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Solution
The fourth proportional to 689,406.12, 950,991.91 and 413,692.65 is: 570,662.71
Step by Step Solution
- Step 1: Write the proportion equation
689,406.12 : 950,991.91 = 413,692.65 : x - Step 2: Convert to fraction form
689,406.12/950,991.91 = 413,692.65/x - Step 3: Cross multiply
689,406.12x = 950,991.91 × 413,692.65 - Step 4: Simplify right side
689,406.12x = 393,418,362,342.23 - Step 5: Solve for x
x = 393,418,362,342.23/689,406.12 - Step 6: Final answer
x = 570,662.71
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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.