Finding the Fourth Proportional to 1,008,929.76, 1,392,332.76 and 556,236.96
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Solution
The fourth proportional to 1,008,929.76, 1,392,332.76 and 556,236.96 is: 767,612.35
Step by Step Solution
- Step 1: Write the proportion equation
1,008,929.76 : 1,392,332.76 = 556,236.96 : x - Step 2: Convert to fraction form
1,008,929.76/1,392,332.76 = 556,236.96/x - Step 3: Cross multiply
1,008,929.76x = 1,392,332.76 × 556,236.96 - Step 4: Simplify right side
1,008,929.76x = 774,466,941,730.81 - Step 5: Solve for x
x = 774,466,941,730.81/1,008,929.76 - Step 6: Final answer
x = 767,612.35
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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.