Finding the Fourth Proportional to 1,115,521.20, 1,542,405.24 and 973,803.60
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Solution
The fourth proportional to 1,115,521.20, 1,542,405.24 and 973,803.60 is: 1,346,455.61
Step by Step Solution
- Step 1: Write the proportion equation
1,115,521.20 : 1,542,405.24 = 973,803.60 : x - Step 2: Convert to fraction form
1,115,521.20/1,542,405.24 = 973,803.60/x - Step 3: Cross multiply
1,115,521.20x = 1,542,405.24 × 973,803.60 - Step 4: Simplify right side
1,115,521.20x = 1,501,999,775,370.86 - Step 5: Solve for x
x = 1,501,999,775,370.86/1,115,521.20 - Step 6: Final answer
x = 1,346,455.61
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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.