Finding the Fourth Proportional to 623,113.98, 859,902.80 and 351,129.75
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Solution
The fourth proportional to 623,113.98, 859,902.80 and 351,129.75 is: 484,562.16
Step by Step Solution
- Step 1: Write the proportion equation
623,113.98 : 859,902.80 = 351,129.75 : x - Step 2: Convert to fraction form
623,113.98/859,902.80 = 351,129.75/x - Step 3: Cross multiply
623,113.98x = 859,902.80 × 351,129.75 - Step 4: Simplify right side
623,113.98x = 301,937,453,432.65 - Step 5: Solve for x
x = 301,937,453,432.65/623,113.98 - Step 6: Final answer
x = 484,562.16
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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.