Finding the Fourth Proportional to 708,294.08, 977,334.90 and 398,135.28
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Solution
The fourth proportional to 708,294.08, 977,334.90 and 398,135.28 is: 549,364.33
Step by Step Solution
- Step 1: Write the proportion equation
708,294.08 : 977,334.90 = 398,135.28 : x - Step 2: Convert to fraction form
708,294.08/977,334.90 = 398,135.28/x - Step 3: Cross multiply
708,294.08x = 977,334.90 × 398,135.28 - Step 4: Simplify right side
708,294.08x = 389,111,504,065.27 - Step 5: Solve for x
x = 389,111,504,065.27/708,294.08 - Step 6: Final answer
x = 549,364.33
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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.