Finding the Fourth Proportional to 1,378,851.64, 2,068,278.07 and 432,296.17
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Solution
The fourth proportional to 1,378,851.64, 2,068,278.07 and 432,296.17 is: 648,444.45
Step by Step Solution
- Step 1: Write the proportion equation
1,378,851.64 : 2,068,278.07 = 432,296.17 : x - Step 2: Convert to fraction form
1,378,851.64/2,068,278.07 = 432,296.17/x - Step 3: Cross multiply
1,378,851.64x = 2,068,278.07 × 432,296.17 - Step 4: Simplify right side
1,378,851.64x = 894,108,688,155.99 - Step 5: Solve for x
x = 894,108,688,155.99/1,378,851.64 - Step 6: Final answer
x = 648,444.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.