Finding the Fourth Proportional to 839,009.42, 1,157,827.08 and 457,036.21
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Solution
The fourth proportional to 839,009.42, 1,157,827.08 and 457,036.21 is: 630,706.75
Step by Step Solution
- Step 1: Write the proportion equation
839,009.42 : 1,157,827.08 = 457,036.21 : x - Step 2: Convert to fraction form
839,009.42/1,157,827.08 = 457,036.21/x - Step 3: Cross multiply
839,009.42x = 1,157,827.08 × 457,036.21 - Step 4: Simplify right side
839,009.42x = 529,168,900,478.57 - Step 5: Solve for x
x = 529,168,900,478.57/839,009.42 - Step 6: Final answer
x = 630,706.75
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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.