Finding the Fourth Proportional to 860,281.14, 1,290,423.76 and 261,246.80
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Solution
The fourth proportional to 860,281.14, 1,290,423.76 and 261,246.80 is: 391,870.82
Step by Step Solution
- Step 1: Write the proportion equation
860,281.14 : 1,290,423.76 = 261,246.80 : x - Step 2: Convert to fraction form
860,281.14/1,290,423.76 = 261,246.80/x - Step 3: Cross multiply
860,281.14x = 1,290,423.76 × 261,246.80 - Step 4: Simplify right side
860,281.14x = 337,119,077,943.97 - Step 5: Solve for x
x = 337,119,077,943.97/860,281.14 - Step 6: Final answer
x = 391,870.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.