Finding the Fourth Proportional to 1,078,358.12, 1,617,478.86 and 330,406.28
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Solution
The fourth proportional to 1,078,358.12, 1,617,478.86 and 330,406.28 is: 495,591.55
Step by Step Solution
- Step 1: Write the proportion equation
1,078,358.12 : 1,617,478.86 = 330,406.28 : x - Step 2: Convert to fraction form
1,078,358.12/1,617,478.86 = 330,406.28/x - Step 3: Cross multiply
1,078,358.12x = 1,617,478.86 × 330,406.28 - Step 4: Simplify right side
1,078,358.12x = 534,425,173,111.24 - Step 5: Solve for x
x = 534,425,173,111.24/1,078,358.12 - Step 6: Final answer
x = 495,591.55
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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.