Finding the Fourth Proportional to 1,787,729.13, 2,467,115.01 and 971,987.65
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Solution
The fourth proportional to 1,787,729.13, 2,467,115.01 and 971,987.65 is: 1,341,369.49
Step by Step Solution
- Step 1: Write the proportion equation
1,787,729.13 : 2,467,115.01 = 971,987.65 : x - Step 2: Convert to fraction form
1,787,729.13/2,467,115.01 = 971,987.65/x - Step 3: Cross multiply
1,787,729.13x = 2,467,115.01 × 971,987.65 - Step 4: Simplify right side
1,787,729.13x = 2,398,005,314,681.84 - Step 5: Solve for x
x = 2,398,005,314,681.84/1,787,729.13 - Step 6: Final answer
x = 1,341,369.49
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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.