Finding the Fourth Proportional to 860,405.88, 1,187,389.11 and 473,251.24
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Solution
The fourth proportional to 860,405.88, 1,187,389.11 and 473,251.24 is: 653,102.66
Step by Step Solution
- Step 1: Write the proportion equation
860,405.88 : 1,187,389.11 = 473,251.24 : x - Step 2: Convert to fraction form
860,405.88/1,187,389.11 = 473,251.24/x - Step 3: Cross multiply
860,405.88x = 1,187,389.11 × 473,251.24 - Step 4: Simplify right side
860,405.88x = 561,933,369,853.13 - Step 5: Solve for x
x = 561,933,369,853.13/860,405.88 - Step 6: Final answer
x = 653,102.66
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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.