Finding the Fourth Proportional to 689,633.42, 951,154.09 and 471,971.12
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Solution
The fourth proportional to 689,633.42, 951,154.09 and 471,971.12 is: 650,950.56
Step by Step Solution
- Step 1: Write the proportion equation
689,633.42 : 951,154.09 = 471,971.12 : x - Step 2: Convert to fraction form
689,633.42/951,154.09 = 471,971.12/x - Step 3: Cross multiply
689,633.42x = 951,154.09 × 471,971.12 - Step 4: Simplify right side
689,633.42x = 448,917,255,214.18 - Step 5: Solve for x
x = 448,917,255,214.18/689,633.42 - Step 6: Final answer
x = 650,950.56
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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.