Finding the Fourth Proportional to 1,115,397.68, 1,539,244.72 and 632,055.18
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Solution
The fourth proportional to 1,115,397.68, 1,539,244.72 and 632,055.18 is: 872,233.85
Step by Step Solution
- Step 1: Write the proportion equation
1,115,397.68 : 1,539,244.72 = 632,055.18 : x - Step 2: Convert to fraction form
1,115,397.68/1,539,244.72 = 632,055.18/x - Step 3: Cross multiply
1,115,397.68x = 1,539,244.72 × 632,055.18 - Step 4: Simplify right side
1,115,397.68x = 972,887,605,125.89 - Step 5: Solve for x
x = 972,887,605,125.89/1,115,397.68 - Step 6: Final answer
x = 872,233.85
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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.