Finding the Fourth Proportional to 1,179,070.99, 1,768,980.32 and 420,896.20
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Solution
The fourth proportional to 1,179,070.99, 1,768,980.32 and 420,896.20 is: 631,477.75
Step by Step Solution
- Step 1: Write the proportion equation
1,179,070.99 : 1,768,980.32 = 420,896.20 : x - Step 2: Convert to fraction form
1,179,070.99/1,768,980.32 = 420,896.20/x - Step 3: Cross multiply
1,179,070.99x = 1,768,980.32 × 420,896.20 - Step 4: Simplify right side
1,179,070.99x = 744,557,094,562.78 - Step 5: Solve for x
x = 744,557,094,562.78/1,179,070.99 - Step 6: Final answer
x = 631,477.75
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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.