Finding the Fourth Proportional to 838,808.51, 1,157,568.93 and 456,834.99
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Solution
The fourth proportional to 838,808.51, 1,157,568.93 and 456,834.99 is: 630,439.47
Step by Step Solution
- Step 1: Write the proportion equation
838,808.51 : 1,157,568.93 = 456,834.99 : x - Step 2: Convert to fraction form
838,808.51/1,157,568.93 = 456,834.99/x - Step 3: Cross multiply
838,808.51x = 1,157,568.93 × 456,834.99 - Step 4: Simplify right side
838,808.51x = 528,817,990,560.86 - Step 5: Solve for x
x = 528,817,990,560.86/838,808.51 - Step 6: Final answer
x = 630,439.47
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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.