Finding the Fourth Proportional to 628,292.37, 867,344.61 and 386,781.96
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Solution
The fourth proportional to 628,292.37, 867,344.61 and 386,781.96 is: 533,944.49
Step by Step Solution
- Step 1: Write the proportion equation
628,292.37 : 867,344.61 = 386,781.96 : x - Step 2: Convert to fraction form
628,292.37/867,344.61 = 386,781.96/x - Step 3: Cross multiply
628,292.37x = 867,344.61 × 386,781.96 - Step 4: Simplify right side
628,292.37x = 335,473,248,251.24 - Step 5: Solve for x
x = 335,473,248,251.24/628,292.37 - Step 6: Final answer
x = 533,944.49
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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.