Finding the Fourth Proportional to 865,423.62, 1,194,277.98 and 478,265.07
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Solution
The fourth proportional to 865,423.62, 1,194,277.98 and 478,265.07 is: 660,002.14
Step by Step Solution
- Step 1: Write the proportion equation
865,423.62 : 1,194,277.98 = 478,265.07 : x - Step 2: Convert to fraction form
865,423.62/1,194,277.98 = 478,265.07/x - Step 3: Cross multiply
865,423.62x = 1,194,277.98 × 478,265.07 - Step 4: Simplify right side
865,423.62x = 571,181,441,704.16 - Step 5: Solve for x
x = 571,181,441,704.16/865,423.62 - Step 6: Final answer
x = 660,002.14
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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.