Finding the Fourth Proportional to 753,329.84, 1,039,602.81 and 409,169.09
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Solution
The fourth proportional to 753,329.84, 1,039,602.81 and 409,169.09 is: 564,657.50
Step by Step Solution
- Step 1: Write the proportion equation
753,329.84 : 1,039,602.81 = 409,169.09 : x - Step 2: Convert to fraction form
753,329.84/1,039,602.81 = 409,169.09/x - Step 3: Cross multiply
753,329.84x = 1,039,602.81 × 409,169.09 - Step 4: Simplify right side
753,329.84x = 425,373,339,862.53 - Step 5: Solve for x
x = 425,373,339,862.53/753,329.84 - Step 6: Final answer
x = 564,657.50
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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.