Finding the Fourth Proportional to 1,070,417.43, 1,605,226.11 and 430,505.18
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Solution
The fourth proportional to 1,070,417.43, 1,605,226.11 and 430,505.18 is: 645,596.88
Step by Step Solution
- Step 1: Write the proportion equation
1,070,417.43 : 1,605,226.11 = 430,505.18 : x - Step 2: Convert to fraction form
1,070,417.43/1,605,226.11 = 430,505.18/x - Step 3: Cross multiply
1,070,417.43x = 1,605,226.11 × 430,505.18 - Step 4: Simplify right side
1,070,417.43x = 691,058,151,805.32 - Step 5: Solve for x
x = 691,058,151,805.32/1,070,417.43 - Step 6: Final answer
x = 645,596.88
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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.