Finding the Fourth Proportional to 514,522.58, 709,814.98 and 310,459.68
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Solution
The fourth proportional to 514,522.58, 709,814.98 and 310,459.68 is: 428,297.89
Step by Step Solution
- Step 1: Write the proportion equation
514,522.58 : 709,814.98 = 310,459.68 : x - Step 2: Convert to fraction form
514,522.58/709,814.98 = 310,459.68/x - Step 3: Cross multiply
514,522.58x = 709,814.98 × 310,459.68 - Step 4: Simplify right side
514,522.58x = 220,368,931,938.08 - Step 5: Solve for x
x = 220,368,931,938.08/514,522.58 - Step 6: Final answer
x = 428,297.89
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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.