Finding the Fourth Proportional to 570,838.53, 787,723.37 and 312,663.99
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Solution
The fourth proportional to 570,838.53, 787,723.37 and 312,663.99 is: 431,457.79
Step by Step Solution
- Step 1: Write the proportion equation
570,838.53 : 787,723.37 = 312,663.99 : x - Step 2: Convert to fraction form
570,838.53/787,723.37 = 312,663.99/x - Step 3: Cross multiply
570,838.53x = 787,723.37 × 312,663.99 - Step 4: Simplify right side
570,838.53x = 246,292,726,378.51 - Step 5: Solve for x
x = 246,292,726,378.51/570,838.53 - Step 6: Final answer
x = 431,457.79
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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.