Finding the Fourth Proportional to 1,128,577.95, 1,692,079.56 and 418,415.31
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Solution
The fourth proportional to 1,128,577.95, 1,692,079.56 and 418,415.31 is: 627,331.05
Step by Step Solution
- Step 1: Write the proportion equation
1,128,577.95 : 1,692,079.56 = 418,415.31 : x - Step 2: Convert to fraction form
1,128,577.95/1,692,079.56 = 418,415.31/x - Step 3: Cross multiply
1,128,577.95x = 1,692,079.56 × 418,415.31 - Step 4: Simplify right side
1,128,577.95x = 707,991,993,642.06 - Step 5: Solve for x
x = 707,991,993,642.06/1,128,577.95 - Step 6: Final answer
x = 627,331.05
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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.