Finding the Fourth Proportional to 708,115.53, 977,187.09 and 385,828.29
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Solution
The fourth proportional to 708,115.53, 977,187.09 and 385,828.29 is: 532,436.32
Step by Step Solution
- Step 1: Write the proportion equation
708,115.53 : 977,187.09 = 385,828.29 : x - Step 2: Convert to fraction form
708,115.53/977,187.09 = 385,828.29/x - Step 3: Cross multiply
708,115.53x = 977,187.09 × 385,828.29 - Step 4: Simplify right side
708,115.53x = 377,026,423,944.78 - Step 5: Solve for x
x = 377,026,423,944.78/708,115.53 - Step 6: Final answer
x = 532,436.32
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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.