Finding the Fourth Proportional to 630,903.80, 870,660.42 and 344,435.96
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Solution
The fourth proportional to 630,903.80, 870,660.42 and 344,435.96 is: 475,328.82
Step by Step Solution
- Step 1: Write the proportion equation
630,903.80 : 870,660.42 = 344,435.96 : x - Step 2: Convert to fraction form
630,903.80/870,660.42 = 344,435.96/x - Step 3: Cross multiply
630,903.80x = 870,660.42 × 344,435.96 - Step 4: Simplify right side
630,903.80x = 299,886,757,596.70 - Step 5: Solve for x
x = 299,886,757,596.70/630,903.80 - Step 6: Final answer
x = 475,328.82
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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.