Finding the Fourth Proportional to 1,114,740.53, 1,671,700.65 and 385,078.12
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Solution
The fourth proportional to 1,114,740.53, 1,671,700.65 and 385,078.12 is: 577,475.49
Step by Step Solution
- Step 1: Write the proportion equation
1,114,740.53 : 1,671,700.65 = 385,078.12 : x - Step 2: Convert to fraction form
1,114,740.53/1,671,700.65 = 385,078.12/x - Step 3: Cross multiply
1,114,740.53x = 1,671,700.65 × 385,078.12 - Step 4: Simplify right side
1,114,740.53x = 643,735,339,325.53 - Step 5: Solve for x
x = 643,735,339,325.53/1,114,740.53 - Step 6: Final answer
x = 577,475.49
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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.