Finding the Fourth Proportional to 961,763.70, 1,442,645.55 and 920,810.10
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Solution
The fourth proportional to 961,763.70, 1,442,645.55 and 920,810.10 is: 1,381,215.15
Step by Step Solution
- Step 1: Write the proportion equation
961,763.70 : 1,442,645.55 = 920,810.10 : x - Step 2: Convert to fraction form
961,763.70/1,442,645.55 = 920,810.10/x - Step 3: Cross multiply
961,763.70x = 1,442,645.55 × 920,810.10 - Step 4: Simplify right side
961,763.70x = 1,328,402,593,160.06 - Step 5: Solve for x
x = 1,328,402,593,160.06/961,763.70 - Step 6: Final answer
x = 1,381,215.15
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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.