Finding the Fourth Proportional to 519,353.55, 716,743.94 and 289,955.94
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Solution
The fourth proportional to 519,353.55, 716,743.94 and 289,955.94 is: 400,159.32
Step by Step Solution
- Step 1: Write the proportion equation
519,353.55 : 716,743.94 = 289,955.94 : x - Step 2: Convert to fraction form
519,353.55/716,743.94 = 289,955.94/x - Step 3: Cross multiply
519,353.55x = 716,743.94 × 289,955.94 - Step 4: Simplify right side
519,353.55x = 207,824,161,412.22 - Step 5: Solve for x
x = 207,824,161,412.22/519,353.55 - Step 6: Final answer
x = 400,159.32
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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.