Finding the Fourth Proportional to 801,711.84, 1,105,830.68 and 515,593.92
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Solution
The fourth proportional to 801,711.84, 1,105,830.68 and 515,593.92 is: 711,177.69
Step by Step Solution
- Step 1: Write the proportion equation
801,711.84 : 1,105,830.68 = 515,593.92 : x - Step 2: Convert to fraction form
801,711.84/1,105,830.68 = 515,593.92/x - Step 3: Cross multiply
801,711.84x = 1,105,830.68 × 515,593.92 - Step 4: Simplify right side
801,711.84x = 570,159,575,157.47 - Step 5: Solve for x
x = 570,159,575,157.47/801,711.84 - Step 6: Final answer
x = 711,177.69
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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.