Finding the Fourth Proportional to 550,374.14, 758,813.21 and 356,439.18
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Solution
The fourth proportional to 550,374.14, 758,813.21 and 356,439.18 is: 491,430.72
Step by Step Solution
- Step 1: Write the proportion equation
550,374.14 : 758,813.21 = 356,439.18 : x - Step 2: Convert to fraction form
550,374.14/758,813.21 = 356,439.18/x - Step 3: Cross multiply
550,374.14x = 758,813.21 × 356,439.18 - Step 4: Simplify right side
550,374.14x = 270,470,762,750.54 - Step 5: Solve for x
x = 270,470,762,750.54/550,374.14 - Step 6: Final answer
x = 491,430.72
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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.