Finding the Fourth Proportional to 630,714.63, 870,373.83 and 344,236.76
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Solution
The fourth proportional to 630,714.63, 870,373.83 and 344,236.76 is: 475,039.99
Step by Step Solution
- Step 1: Write the proportion equation
630,714.63 : 870,373.83 = 344,236.76 : x - Step 2: Convert to fraction form
630,714.63/870,373.83 = 344,236.76/x - Step 3: Cross multiply
630,714.63x = 870,373.83 × 344,236.76 - Step 4: Simplify right side
630,714.63x = 299,614,668,910.71 - Step 5: Solve for x
x = 299,614,668,910.71/630,714.63 - Step 6: Final answer
x = 475,039.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.