Finding the Fourth Proportional to 930,230.10, 1,395,345.15 and 299,207.70
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Solution
The fourth proportional to 930,230.10, 1,395,345.15 and 299,207.70 is: 448,811.55
Step by Step Solution
- Step 1: Write the proportion equation
930,230.10 : 1,395,345.15 = 299,207.70 : x - Step 2: Convert to fraction form
930,230.10/1,395,345.15 = 299,207.70/x - Step 3: Cross multiply
930,230.10x = 1,395,345.15 × 299,207.70 - Step 4: Simplify right side
930,230.10x = 417,498,013,037.66 - Step 5: Solve for x
x = 417,498,013,037.66/930,230.10 - Step 6: Final answer
x = 448,811.55
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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.