Finding the Fourth Proportional to 860,434.50, 1,187,353.44 and 497,864.28
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Solution
The fourth proportional to 860,434.50, 1,187,353.44 and 497,864.28 is: 687,025.99
Step by Step Solution
- Step 1: Write the proportion equation
860,434.50 : 1,187,353.44 = 497,864.28 : x - Step 2: Convert to fraction form
860,434.50/1,187,353.44 = 497,864.28/x - Step 3: Cross multiply
860,434.50x = 1,187,353.44 × 497,864.28 - Step 4: Simplify right side
860,434.50x = 591,140,865,511.12 - Step 5: Solve for x
x = 591,140,865,511.12/860,434.50 - Step 6: Final answer
x = 687,025.99
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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.