Finding the Fourth Proportional to 488,389.70, 732,584.55 and 409,657.70
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Solution
The fourth proportional to 488,389.70, 732,584.55 and 409,657.70 is: 614,486.55
Step by Step Solution
- Step 1: Write the proportion equation
488,389.70 : 732,584.55 = 409,657.70 : x - Step 2: Convert to fraction form
488,389.70/732,584.55 = 409,657.70/x - Step 3: Cross multiply
488,389.70x = 732,584.55 × 409,657.70 - Step 4: Simplify right side
488,389.70x = 300,108,901,808.54 - Step 5: Solve for x
x = 300,108,901,808.54/488,389.70 - Step 6: Final answer
x = 614,486.55
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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.