Finding the Fourth Proportional to 1,858,815.51, 2,788,356.53 and 778,240.68
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Solution
The fourth proportional to 1,858,815.51, 2,788,356.53 and 778,240.68 is: 1,167,416.82
Step by Step Solution
- Step 1: Write the proportion equation
1,858,815.51 : 2,788,356.53 = 778,240.68 : x - Step 2: Convert to fraction form
1,858,815.51/2,788,356.53 = 778,240.68/x - Step 3: Cross multiply
1,858,815.51x = 2,788,356.53 × 778,240.68 - Step 4: Simplify right side
1,858,815.51x = 2,170,012,483,935.24 - Step 5: Solve for x
x = 2,170,012,483,935.24/1,858,815.51 - Step 6: Final answer
x = 1,167,416.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.