Finding the Fourth Proportional to 1,542,319.28, 2,128,411.32 and 898,115.12
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Solution
The fourth proportional to 1,542,319.28, 2,128,411.32 and 898,115.12 is: 1,239,405.10
Step by Step Solution
- Step 1: Write the proportion equation
1,542,319.28 : 2,128,411.32 = 898,115.12 : x - Step 2: Convert to fraction form
1,542,319.28/2,128,411.32 = 898,115.12/x - Step 3: Cross multiply
1,542,319.28x = 2,128,411.32 × 898,115.12 - Step 4: Simplify right side
1,542,319.28x = 1,911,558,388,071.16 - Step 5: Solve for x
x = 1,911,558,388,071.16/1,542,319.28 - Step 6: Final answer
x = 1,239,405.10
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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.