Finding the Fourth Proportional to 1,009,503.68, 1,393,112.40 and 579,811.68
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Solution
The fourth proportional to 1,009,503.68, 1,393,112.40 and 579,811.68 is: 800,138.58
Step by Step Solution
- Step 1: Write the proportion equation
1,009,503.68 : 1,393,112.40 = 579,811.68 : x - Step 2: Convert to fraction form
1,009,503.68/1,393,112.40 = 579,811.68/x - Step 3: Cross multiply
1,009,503.68x = 1,393,112.40 × 579,811.68 - Step 4: Simplify right side
1,009,503.68x = 807,742,841,072.83 - Step 5: Solve for x
x = 807,742,841,072.83/1,009,503.68 - Step 6: Final answer
x = 800,138.58
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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.