Finding the Fourth Proportional to 917,622.97, 1,374,337.85 and 438,186.59
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Solution
The fourth proportional to 917,622.97, 1,374,337.85 and 438,186.59 is: 656,278.70
Step by Step Solution
- Step 1: Write the proportion equation
917,622.97 : 1,374,337.85 = 438,186.59 : x - Step 2: Convert to fraction form
917,622.97/1,374,337.85 = 438,186.59/x - Step 3: Cross multiply
917,622.97x = 1,374,337.85 × 438,186.59 - Step 4: Simplify right side
917,622.97x = 602,216,412,090.58 - Step 5: Solve for x
x = 602,216,412,090.58/917,622.97 - Step 6: Final answer
x = 656,278.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.