Finding the Fourth Proportional to 689,633.29, 951,153.91 and 471,970.99
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Solution
The fourth proportional to 689,633.29, 951,153.91 and 471,970.99 is: 650,950.38
Step by Step Solution
- Step 1: Write the proportion equation
689,633.29 : 951,153.91 = 471,970.99 : x - Step 2: Convert to fraction form
689,633.29/951,153.91 = 471,970.99/x - Step 3: Cross multiply
689,633.29x = 951,153.91 × 471,970.99 - Step 4: Simplify right side
689,633.29x = 448,917,052,545.07 - Step 5: Solve for x
x = 448,917,052,545.07/689,633.29 - Step 6: Final answer
x = 650,950.38
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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.