Finding the Fourth Proportional to 691,866.04, 954,773.56 and 390,057.88
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Solution
The fourth proportional to 691,866.04, 954,773.56 and 390,057.88 is: 538,278.99
Step by Step Solution
- Step 1: Write the proportion equation
691,866.04 : 954,773.56 = 390,057.88 : x - Step 2: Convert to fraction form
691,866.04/954,773.56 = 390,057.88/x - Step 3: Cross multiply
691,866.04x = 954,773.56 × 390,057.88 - Step 4: Simplify right side
691,866.04x = 372,416,950,693.65 - Step 5: Solve for x
x = 372,416,950,693.65/691,866.04 - Step 6: Final answer
x = 538,278.99
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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.