Finding the Fourth Proportional to 1,159,931.44, 1,600,702.14 and 643,763.26
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Solution
The fourth proportional to 1,159,931.44, 1,600,702.14 and 643,763.26 is: 888,391.50
Step by Step Solution
- Step 1: Write the proportion equation
1,159,931.44 : 1,600,702.14 = 643,763.26 : x - Step 2: Convert to fraction form
1,159,931.44/1,600,702.14 = 643,763.26/x - Step 3: Cross multiply
1,159,931.44x = 1,600,702.14 × 643,763.26 - Step 4: Simplify right side
1,159,931.44x = 1,030,473,227,935.38 - Step 5: Solve for x
x = 1,030,473,227,935.38/1,159,931.44 - Step 6: Final answer
x = 888,391.50
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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.