Finding the Fourth Proportional to 623,281.99, 859,937.43 and 381,312.31
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Solution
The fourth proportional to 623,281.99, 859,937.43 and 381,312.31 is: 526,093.70
Step by Step Solution
- Step 1: Write the proportion equation
623,281.99 : 859,937.43 = 381,312.31 : x - Step 2: Convert to fraction form
623,281.99/859,937.43 = 381,312.31/x - Step 3: Cross multiply
623,281.99x = 859,937.43 × 381,312.31 - Step 4: Simplify right side
623,281.99x = 327,904,727,888.76 - Step 5: Solve for x
x = 327,904,727,888.76/623,281.99 - Step 6: Final answer
x = 526,093.70
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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.