Finding the Fourth Proportional to 488,128.41, 732,710.21 and 432,330.75
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Solution
The fourth proportional to 488,128.41, 732,710.21 and 432,330.75 is: 648,954.55
Step by Step Solution
- Step 1: Write the proportion equation
488,128.41 : 732,710.21 = 432,330.75 : x - Step 2: Convert to fraction form
488,128.41/732,710.21 = 432,330.75/x - Step 3: Cross multiply
488,128.41x = 732,710.21 × 432,330.75 - Step 4: Simplify right side
488,128.41x = 316,773,152,460.30 - Step 5: Solve for x
x = 316,773,152,460.30/488,128.41 - Step 6: Final answer
x = 648,954.55
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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.