Finding the Fourth Proportional to 559,023.98, 771,436.24 and 310,665.08
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Solution
The fourth proportional to 559,023.98, 771,436.24 and 310,665.08 is: 428,708.45
Step by Step Solution
- Step 1: Write the proportion equation
559,023.98 : 771,436.24 = 310,665.08 : x - Step 2: Convert to fraction form
559,023.98/771,436.24 = 310,665.08/x - Step 3: Cross multiply
559,023.98x = 771,436.24 × 310,665.08 - Step 4: Simplify right side
559,023.98x = 239,658,302,366.43 - Step 5: Solve for x
x = 239,658,302,366.43/559,023.98 - Step 6: Final answer
x = 428,708.45
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1.5x scale
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.