Finding the Fourth Proportional to 1,018,631.04, 1,406,209.44 and 636,780.96
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Solution
The fourth proportional to 1,018,631.04, 1,406,209.44 and 636,780.96 is: 879,069.42
Step by Step Solution
- Step 1: Write the proportion equation
1,018,631.04 : 1,406,209.44 = 636,780.96 : x - Step 2: Convert to fraction form
1,018,631.04/1,406,209.44 = 636,780.96/x - Step 3: Cross multiply
1,018,631.04x = 1,406,209.44 × 636,780.96 - Step 4: Simplify right side
1,018,631.04x = 895,447,397,164.26 - Step 5: Solve for x
x = 895,447,397,164.26/1,018,631.04 - Step 6: Final answer
x = 879,069.42
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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.