Finding the Fourth Proportional to 520,943.83, 719,014.18 and 339,331.70
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Solution
The fourth proportional to 520,943.83, 719,014.18 and 339,331.70 is: 468,350.50
Step by Step Solution
- Step 1: Write the proportion equation
520,943.83 : 719,014.18 = 339,331.70 : x - Step 2: Convert to fraction form
520,943.83/719,014.18 = 339,331.70/x - Step 3: Cross multiply
520,943.83x = 719,014.18 × 339,331.70 - Step 4: Simplify right side
520,943.83x = 243,984,304,023.51 - Step 5: Solve for x
x = 243,984,304,023.51/520,943.83 - Step 6: Final answer
x = 468,350.50
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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.