Finding the Fourth Proportional to 766,291.18, 1,057,402.28 and 471,894.10
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Solution
The fourth proportional to 766,291.18, 1,057,402.28 and 471,894.10 is: 651,164.87
Step by Step Solution
- Step 1: Write the proportion equation
766,291.18 : 1,057,402.28 = 471,894.10 : x - Step 2: Convert to fraction form
766,291.18/1,057,402.28 = 471,894.10/x - Step 3: Cross multiply
766,291.18x = 1,057,402.28 × 471,894.10 - Step 4: Simplify right side
766,291.18x = 498,981,897,258.55 - Step 5: Solve for x
x = 498,981,897,258.55/766,291.18 - Step 6: Final answer
x = 651,164.87
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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.