Finding the Fourth Proportional to 1,315,235.70, 1,972,853.55 and 516,251.70
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Solution
The fourth proportional to 1,315,235.70, 1,972,853.55 and 516,251.70 is: 774,377.55
Step by Step Solution
- Step 1: Write the proportion equation
1,315,235.70 : 1,972,853.55 = 516,251.70 : x - Step 2: Convert to fraction form
1,315,235.70/1,972,853.55 = 516,251.70/x - Step 3: Cross multiply
1,315,235.70x = 1,972,853.55 × 516,251.70 - Step 4: Simplify right side
1,315,235.70x = 1,018,488,999,038.54 - Step 5: Solve for x
x = 1,018,488,999,038.54/1,315,235.70 - Step 6: Final answer
x = 774,377.55
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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.