Finding the Fourth Proportional to 1,858,817.51, 2,788,359.53 and 778,242.68
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Solution
The fourth proportional to 1,858,817.51, 2,788,359.53 and 778,242.68 is: 1,167,419.81
Step by Step Solution
- Step 1: Write the proportion equation
1,858,817.51 : 2,788,359.53 = 778,242.68 : x - Step 2: Convert to fraction form
1,858,817.51/2,788,359.53 = 778,242.68/x - Step 3: Cross multiply
1,858,817.51x = 2,788,359.53 × 778,242.68 - Step 4: Simplify right side
1,858,817.51x = 2,170,020,393,430.74 - Step 5: Solve for x
x = 2,170,020,393,430.74/1,858,817.51 - Step 6: Final answer
x = 1,167,419.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.