Finding the Fourth Proportional to 1,903,130.21, 2,626,077.70 and 1,087,386.70
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Solution
The fourth proportional to 1,903,130.21, 2,626,077.70 and 1,087,386.70 is: 1,500,455.38
Step by Step Solution
- Step 1: Write the proportion equation
1,903,130.21 : 2,626,077.70 = 1,087,386.70 : x - Step 2: Convert to fraction form
1,903,130.21/2,626,077.70 = 1,087,386.70/x - Step 3: Cross multiply
1,903,130.21x = 2,626,077.70 × 1,087,386.70 - Step 4: Simplify right side
1,903,130.21x = 2,855,561,961,428.12 - Step 5: Solve for x
x = 2,855,561,961,428.12/1,903,130.21 - Step 6: Final answer
x = 1,500,455.38
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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.