Finding the Fourth Proportional to 2,986,391.80, 4,479,587.70 and 742,529.80
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Solution
The fourth proportional to 2,986,391.80, 4,479,587.70 and 742,529.80 is: 1,113,794.70
Step by Step Solution
- Step 1: Write the proportion equation
2,986,391.80 : 4,479,587.70 = 742,529.80 : x - Step 2: Convert to fraction form
2,986,391.80/4,479,587.70 = 742,529.80/x - Step 3: Cross multiply
2,986,391.80x = 4,479,587.70 × 742,529.80 - Step 4: Simplify right side
2,986,391.80x = 3,326,227,358,963.46 - Step 5: Solve for x
x = 3,326,227,358,963.46/2,986,391.80 - Step 6: Final answer
x = 1,113,794.70
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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.