Finding the Fourth Proportional to 630,652.19, 870,320.39 and 358,713.11
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Solution
The fourth proportional to 630,652.19, 870,320.39 and 358,713.11 is: 495,035.68
Step by Step Solution
- Step 1: Write the proportion equation
630,652.19 : 870,320.39 = 358,713.11 : x - Step 2: Convert to fraction form
630,652.19/870,320.39 = 358,713.11/x - Step 3: Cross multiply
630,652.19x = 870,320.39 × 358,713.11 - Step 4: Simplify right side
630,652.19x = 312,195,333,793.31 - Step 5: Solve for x
x = 312,195,333,793.31/630,652.19 - Step 6: Final answer
x = 495,035.68
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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.