Finding the Fourth Proportional to 1,438,746.14, 2,157,651.98 and 478,943.93
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Solution
The fourth proportional to 1,438,746.14, 2,157,651.98 and 478,943.93 is: 718,260.36
Step by Step Solution
- Step 1: Write the proportion equation
1,438,746.14 : 2,157,651.98 = 478,943.93 : x - Step 2: Convert to fraction form
1,438,746.14/2,157,651.98 = 478,943.93/x - Step 3: Cross multiply
1,438,746.14x = 2,157,651.98 × 478,943.93 - Step 4: Simplify right side
1,438,746.14x = 1,033,394,323,668.93 - Step 5: Solve for x
x = 1,033,394,323,668.93/1,438,746.14 - Step 6: Final answer
x = 718,260.36
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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.