Finding the Fourth Proportional to 839,407.84, 1,158,396.24 and 457,434.88
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Solution
The fourth proportional to 839,407.84, 1,158,396.24 and 457,434.88 is: 631,267.45
Step by Step Solution
- Step 1: Write the proportion equation
839,407.84 : 1,158,396.24 = 457,434.88 : x - Step 2: Convert to fraction form
839,407.84/1,158,396.24 = 457,434.88/x - Step 3: Cross multiply
839,407.84x = 1,158,396.24 × 457,434.88 - Step 4: Simplify right side
839,407.84x = 529,890,845,036.85 - Step 5: Solve for x
x = 529,890,845,036.85/839,407.84 - Step 6: Final answer
x = 631,267.45
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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.