Finding the Fourth Proportional to 817,909.26, 1,128,509.88 and 491,277.12
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Solution
The fourth proportional to 817,909.26, 1,128,509.88 and 491,277.12 is: 677,839.35
Step by Step Solution
- Step 1: Write the proportion equation
817,909.26 : 1,128,509.88 = 491,277.12 : x - Step 2: Convert to fraction form
817,909.26/1,128,509.88 = 491,277.12/x - Step 3: Cross multiply
817,909.26x = 1,128,509.88 × 491,277.12 - Step 4: Simplify right side
817,909.26x = 554,411,083,737.95 - Step 5: Solve for x
x = 554,411,083,737.95/817,909.26 - Step 6: Final answer
x = 677,839.35
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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.