Finding the Fourth Proportional to 1,223,252.20, 1,688,110.50 and 679,438.44
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Solution
The fourth proportional to 1,223,252.20, 1,688,110.50 and 679,438.44 is: 937,637.52
Step by Step Solution
- Step 1: Write the proportion equation
1,223,252.20 : 1,688,110.50 = 679,438.44 : x - Step 2: Convert to fraction form
1,223,252.20/1,688,110.50 = 679,438.44/x - Step 3: Cross multiply
1,223,252.20x = 1,688,110.50 × 679,438.44 - Step 4: Simplify right side
1,223,252.20x = 1,146,967,164,667.62 - Step 5: Solve for x
x = 1,146,967,164,667.62/1,223,252.20 - Step 6: Final answer
x = 937,637.52
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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.