Finding the Fourth Proportional to 630,660.54, 870,330.60 and 358,767.42
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Solution
The fourth proportional to 630,660.54, 870,330.60 and 358,767.42 is: 495,109.88
Step by Step Solution
- Step 1: Write the proportion equation
630,660.54 : 870,330.60 = 358,767.42 : x - Step 2: Convert to fraction form
630,660.54/870,330.60 = 358,767.42/x - Step 3: Cross multiply
630,660.54x = 870,330.60 × 358,767.42 - Step 4: Simplify right side
630,660.54x = 312,246,263,909.05 - Step 5: Solve for x
x = 312,246,263,909.05/630,660.54 - Step 6: Final answer
x = 495,109.88
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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.