Finding the Fourth Proportional to 488,371.70, 732,557.55 and 409,639.70
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Solution
The fourth proportional to 488,371.70, 732,557.55 and 409,639.70 is: 614,459.55
Step by Step Solution
- Step 1: Write the proportion equation
488,371.70 : 732,557.55 = 409,639.70 : x - Step 2: Convert to fraction form
488,371.70/732,557.55 = 409,639.70/x - Step 3: Cross multiply
488,371.70x = 732,557.55 × 409,639.70 - Step 4: Simplify right side
488,371.70x = 300,084,655,014.74 - Step 5: Solve for x
x = 300,084,655,014.74/488,371.70 - Step 6: Final answer
x = 614,459.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.