Finding the Fourth Proportional to 629,814.39, 869,454.12 and 436,368.75
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Solution
The fourth proportional to 629,814.39, 869,454.12 and 436,368.75 is: 602,403.84
Step by Step Solution
- Step 1: Write the proportion equation
629,814.39 : 869,454.12 = 436,368.75 : x - Step 2: Convert to fraction form
629,814.39/869,454.12 = 436,368.75/x - Step 3: Cross multiply
629,814.39x = 869,454.12 × 436,368.75 - Step 4: Simplify right side
629,814.39x = 379,402,607,526.75 - Step 5: Solve for x
x = 379,402,607,526.75/629,814.39 - Step 6: Final answer
x = 602,403.84
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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.