Finding the Fourth Proportional to 566,183.13, 781,338.18 and 311,539.78
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Solution
The fourth proportional to 566,183.13, 781,338.18 and 311,539.78 is: 429,927.90
Step by Step Solution
- Step 1: Write the proportion equation
566,183.13 : 781,338.18 = 311,539.78 : x - Step 2: Convert to fraction form
566,183.13/781,338.18 = 311,539.78/x - Step 3: Cross multiply
566,183.13x = 781,338.18 × 311,539.78 - Step 4: Simplify right side
566,183.13x = 243,417,924,702.80 - Step 5: Solve for x
x = 243,417,924,702.80/566,183.13 - Step 6: Final answer
x = 429,927.90
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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.