Finding the Fourth Proportional to 630,912.54, 870,708.99 and 358,991.88
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Solution
The fourth proportional to 630,912.54, 870,708.99 and 358,991.88 is: 495,437.07
Step by Step Solution
- Step 1: Write the proportion equation
630,912.54 : 870,708.99 = 358,991.88 : x - Step 2: Convert to fraction form
630,912.54/870,708.99 = 358,991.88/x - Step 3: Cross multiply
630,912.54x = 870,708.99 × 358,991.88 - Step 4: Simplify right side
630,912.54x = 312,577,457,253.00 - Step 5: Solve for x
x = 312,577,457,253.00/630,912.54 - Step 6: Final answer
x = 495,437.07
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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.