Finding the Fourth Proportional to 1,340,857.08, 2,010,758.58 and 487,726.20
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Solution
The fourth proportional to 1,340,857.08, 2,010,758.58 and 487,726.20 is: 731,397.59
Step by Step Solution
- Step 1: Write the proportion equation
1,340,857.08 : 2,010,758.58 = 487,726.20 : x - Step 2: Convert to fraction form
1,340,857.08/2,010,758.58 = 487,726.20/x - Step 3: Cross multiply
1,340,857.08x = 2,010,758.58 × 487,726.20 - Step 4: Simplify right side
1,340,857.08x = 980,699,641,340.80 - Step 5: Solve for x
x = 980,699,641,340.80/1,340,857.08 - Step 6: Final answer
x = 731,397.59
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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.