Finding the Fourth Proportional to 571,130.19, 788,157.54 and 316,481.18
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Solution
The fourth proportional to 571,130.19, 788,157.54 and 316,481.18 is: 436,742.85
Step by Step Solution
- Step 1: Write the proportion equation
571,130.19 : 788,157.54 = 316,481.18 : x - Step 2: Convert to fraction form
571,130.19/788,157.54 = 316,481.18/x - Step 3: Cross multiply
571,130.19x = 788,157.54 × 316,481.18 - Step 4: Simplify right side
571,130.19x = 249,437,024,344.31 - Step 5: Solve for x
x = 249,437,024,344.31/571,130.19 - Step 6: Final answer
x = 436,742.85
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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.