Finding the Fourth Proportional to 860,176.13, 1,187,044.47 and 478,202.91
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Solution
The fourth proportional to 860,176.13, 1,187,044.47 and 478,202.91 is: 659,920.80
Step by Step Solution
- Step 1: Write the proportion equation
860,176.13 : 1,187,044.47 = 478,202.91 : x - Step 2: Convert to fraction form
860,176.13/1,187,044.47 = 478,202.91/x - Step 3: Cross multiply
860,176.13x = 1,187,044.47 × 478,202.91 - Step 4: Simplify right side
860,176.13x = 567,648,115,401.99 - Step 5: Solve for x
x = 567,648,115,401.99/860,176.13 - Step 6: Final answer
x = 659,920.80
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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.