Finding the Fourth Proportional to 708,502.14, 977,684.11 and 398,451.08
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Solution
The fourth proportional to 708,502.14, 977,684.11 and 398,451.08 is: 549,835.02
Step by Step Solution
- Step 1: Write the proportion equation
708,502.14 : 977,684.11 = 398,451.08 : x - Step 2: Convert to fraction form
708,502.14/977,684.11 = 398,451.08/x - Step 3: Cross multiply
708,502.14x = 977,684.11 × 398,451.08 - Step 4: Simplify right side
708,502.14x = 389,559,290,976.42 - Step 5: Solve for x
x = 389,559,290,976.42/708,502.14 - Step 6: Final answer
x = 549,835.02
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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.