Finding the Fourth Proportional to 611,507.18, 843,901.02 and 339,579.63
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Solution
The fourth proportional to 611,507.18, 843,901.02 and 339,579.63 is: 468,631.61
Step by Step Solution
- Step 1: Write the proportion equation
611,507.18 : 843,901.02 = 339,579.63 : x - Step 2: Convert to fraction form
611,507.18/843,901.02 = 339,579.63/x - Step 3: Cross multiply
611,507.18x = 843,901.02 × 339,579.63 - Step 4: Simplify right side
611,507.18x = 286,571,596,128.22 - Step 5: Solve for x
x = 286,571,596,128.22/611,507.18 - Step 6: Final answer
x = 468,631.61
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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.