Finding the Fourth Proportional to 870,678.18, 1,201,565.95 and 483,500.08
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Solution
The fourth proportional to 870,678.18, 1,201,565.95 and 483,500.08 is: 667,246.81
Step by Step Solution
- Step 1: Write the proportion equation
870,678.18 : 1,201,565.95 = 483,500.08 : x - Step 2: Convert to fraction form
870,678.18/1,201,565.95 = 483,500.08/x - Step 3: Cross multiply
870,678.18x = 1,201,565.95 × 483,500.08 - Step 4: Simplify right side
870,678.18x = 580,957,234,159.03 - Step 5: Solve for x
x = 580,957,234,159.03/870,678.18 - Step 6: Final answer
x = 667,246.81
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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.