Finding the Fourth Proportional to 1,991,400.01, 2,748,567.14 and 1,266,106.05
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Solution
The fourth proportional to 1,991,400.01, 2,748,567.14 and 1,266,106.05 is: 1,747,503.00
Step by Step Solution
- Step 1: Write the proportion equation
1,991,400.01 : 2,748,567.14 = 1,266,106.05 : x - Step 2: Convert to fraction form
1,991,400.01/2,748,567.14 = 1,266,106.05/x - Step 3: Cross multiply
1,991,400.01x = 2,748,567.14 × 1,266,106.05 - Step 4: Simplify right side
1,991,400.01x = 3,479,977,484,785.20 - Step 5: Solve for x
x = 3,479,977,484,785.20/1,991,400.01 - Step 6: Final answer
x = 1,747,503.00
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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.