Finding the Fourth Proportional to 3,360,154.80, 5,037,006.60 and 1,115,137.20
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Solution
The fourth proportional to 3,360,154.80, 5,037,006.60 and 1,115,137.20 is: 1,671,635.32
Step by Step Solution
- Step 1: Write the proportion equation
3,360,154.80 : 5,037,006.60 = 1,115,137.20 : x - Step 2: Convert to fraction form
3,360,154.80/5,037,006.60 = 1,115,137.20/x - Step 3: Cross multiply
3,360,154.80x = 5,037,006.60 × 1,115,137.20 - Step 4: Simplify right side
3,360,154.80x = 5,616,953,436,305.52 - Step 5: Solve for x
x = 5,616,953,436,305.52/3,360,154.80 - Step 6: Final answer
x = 1,671,635.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.