Finding the Fourth Proportional to 1,155,296.68, 1,594,186.69 and 638,968.54
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Solution
The fourth proportional to 1,155,296.68, 1,594,186.69 and 638,968.54 is: 881,708.70
Step by Step Solution
- Step 1: Write the proportion equation
1,155,296.68 : 1,594,186.69 = 638,968.54 : x - Step 2: Convert to fraction form
1,155,296.68/1,594,186.69 = 638,968.54/x - Step 3: Cross multiply
1,155,296.68x = 1,594,186.69 × 638,968.54 - Step 4: Simplify right side
1,155,296.68x = 1,018,635,130,630.96 - Step 5: Solve for x
x = 1,018,635,130,630.96/1,155,296.68 - Step 6: Final answer
x = 881,708.70
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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.