Finding the Fourth Proportional to 581,378.95, 802,122.63 and 339,487.03
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Solution
The fourth proportional to 581,378.95, 802,122.63 and 339,487.03 is: 468,386.80
Step by Step Solution
- Step 1: Write the proportion equation
581,378.95 : 802,122.63 = 339,487.03 : x - Step 2: Convert to fraction form
581,378.95/802,122.63 = 339,487.03/x - Step 3: Cross multiply
581,378.95x = 802,122.63 × 339,487.03 - Step 4: Simplify right side
581,378.95x = 272,310,225,343.88 - Step 5: Solve for x
x = 272,310,225,343.88/581,378.95 - Step 6: Final answer
x = 468,386.80
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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.