Finding the Fourth Proportional to 1,129,515.18, 1,558,762.83 and 670,517.34
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Solution
The fourth proportional to 1,129,515.18, 1,558,762.83 and 670,517.34 is: 925,332.86
Step by Step Solution
- Step 1: Write the proportion equation
1,129,515.18 : 1,558,762.83 = 670,517.34 : x - Step 2: Convert to fraction form
1,129,515.18/1,558,762.83 = 670,517.34/x - Step 3: Cross multiply
1,129,515.18x = 1,558,762.83 × 670,517.34 - Step 4: Simplify right side
1,129,515.18x = 1,045,177,506,462.47 - Step 5: Solve for x
x = 1,045,177,506,462.47/1,129,515.18 - Step 6: Final answer
x = 925,332.86
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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.