Finding the Fourth Proportional to 1,308,135.20, 1,805,267.54 and 791,983.76
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Solution
The fourth proportional to 1,308,135.20, 1,805,267.54 and 791,983.76 is: 1,092,962.39
Step by Step Solution
- Step 1: Write the proportion equation
1,308,135.20 : 1,805,267.54 = 791,983.76 : x - Step 2: Convert to fraction form
1,308,135.20/1,805,267.54 = 791,983.76/x - Step 3: Cross multiply
1,308,135.20x = 1,805,267.54 × 791,983.76 - Step 4: Simplify right side
1,308,135.20x = 1,429,742,574,135.15 - Step 5: Solve for x
x = 1,429,742,574,135.15/1,308,135.20 - Step 6: Final answer
x = 1,092,962.39
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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.