Finding the Fourth Proportional to 817,928.09, 1,128,715.13 and 473,770.74
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Solution
The fourth proportional to 817,928.09, 1,128,715.13 and 473,770.74 is: 653,788.77
Step by Step Solution
- Step 1: Write the proportion equation
817,928.09 : 1,128,715.13 = 473,770.74 : x - Step 2: Convert to fraction form
817,928.09/1,128,715.13 = 473,770.74/x - Step 3: Cross multiply
817,928.09x = 1,128,715.13 × 473,770.74 - Step 4: Simplify right side
817,928.09x = 534,752,204,253.12 - Step 5: Solve for x
x = 534,752,204,253.12/817,928.09 - Step 6: Final answer
x = 653,788.77
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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.