Finding the Fourth Proportional to 478,710.25, 718,293.47 and 298,746.79
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Solution
The fourth proportional to 478,710.25, 718,293.47 and 298,746.79 is: 448,262.53
Step by Step Solution
- Step 1: Write the proportion equation
478,710.25 : 718,293.47 = 298,746.79 : x - Step 2: Convert to fraction form
478,710.25/718,293.47 = 298,746.79/x - Step 3: Cross multiply
478,710.25x = 718,293.47 × 298,746.79 - Step 4: Simplify right side
478,710.25x = 214,587,865,150.99 - Step 5: Solve for x
x = 214,587,865,150.99/478,710.25 - Step 6: Final answer
x = 448,262.53
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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.