Finding the Fourth Proportional to 936,124.21, 1,291,847.52 and 506,403.28
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Solution
The fourth proportional to 936,124.21, 1,291,847.52 and 506,403.28 is: 698,834.42
Step by Step Solution
- Step 1: Write the proportion equation
936,124.21 : 1,291,847.52 = 506,403.28 : x - Step 2: Convert to fraction form
936,124.21/1,291,847.52 = 506,403.28/x - Step 3: Cross multiply
936,124.21x = 1,291,847.52 × 506,403.28 - Step 4: Simplify right side
936,124.21x = 654,195,821,387.87 - Step 5: Solve for x
x = 654,195,821,387.87/936,124.21 - Step 6: Final answer
x = 698,834.42
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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.