Finding the Fourth Proportional to 1,078,355.12, 1,617,474.36 and 330,403.28
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Solution
The fourth proportional to 1,078,355.12, 1,617,474.36 and 330,403.28 is: 495,587.05
Step by Step Solution
- Step 1: Write the proportion equation
1,078,355.12 : 1,617,474.36 = 330,403.28 : x - Step 2: Convert to fraction form
1,078,355.12/1,617,474.36 = 330,403.28/x - Step 3: Cross multiply
1,078,355.12x = 1,617,474.36 × 330,403.28 - Step 4: Simplify right side
1,078,355.12x = 534,418,833,859.90 - Step 5: Solve for x
x = 534,418,833,859.90/1,078,355.12 - Step 6: Final answer
x = 495,587.05
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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.