Finding the Fourth Proportional to 571,447.84, 788,617.20 and 316,783.84
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Solution
The fourth proportional to 571,447.84, 788,617.20 and 316,783.84 is: 437,172.33
Step by Step Solution
- Step 1: Write the proportion equation
571,447.84 : 788,617.20 = 316,783.84 : x - Step 2: Convert to fraction form
571,447.84/788,617.20 = 316,783.84/x - Step 3: Cross multiply
571,447.84x = 788,617.20 × 316,783.84 - Step 4: Simplify right side
571,447.84x = 249,821,184,906.05 - Step 5: Solve for x
x = 249,821,184,906.05/571,447.84 - Step 6: Final answer
x = 437,172.33
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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.