Finding the Fourth Proportional to 669,888.12, 924,391.98 and 383,342.52
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Solution
The fourth proportional to 669,888.12, 924,391.98 and 383,342.52 is: 528,981.99
Step by Step Solution
- Step 1: Write the proportion equation
669,888.12 : 924,391.98 = 383,342.52 : x - Step 2: Convert to fraction form
669,888.12/924,391.98 = 383,342.52/x - Step 3: Cross multiply
669,888.12x = 924,391.98 × 383,342.52 - Step 4: Simplify right side
669,888.12x = 354,358,751,080.99 - Step 5: Solve for x
x = 354,358,751,080.99/669,888.12 - Step 6: Final answer
x = 528,981.99
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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.