Finding the Fourth Proportional to 623,686.74, 860,686.97 and 337,206.15
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Solution
The fourth proportional to 623,686.74, 860,686.97 and 337,206.15 is: 465,344.09
Step by Step Solution
- Step 1: Write the proportion equation
623,686.74 : 860,686.97 = 337,206.15 : x - Step 2: Convert to fraction form
623,686.74/860,686.97 = 337,206.15/x - Step 3: Cross multiply
623,686.74x = 860,686.97 × 337,206.15 - Step 4: Simplify right side
623,686.74x = 290,228,939,508.87 - Step 5: Solve for x
x = 290,228,939,508.87/623,686.74 - Step 6: Final answer
x = 465,344.09
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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.