Finding the Fourth Proportional to 1,386,681.53, 2,080,022.42 and 907,312.12
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Solution
The fourth proportional to 1,386,681.53, 2,080,022.42 and 907,312.12 is: 1,360,968.26
Step by Step Solution
- Step 1: Write the proportion equation
1,386,681.53 : 2,080,022.42 = 907,312.12 : x - Step 2: Convert to fraction form
1,386,681.53/2,080,022.42 = 907,312.12/x - Step 3: Cross multiply
1,386,681.53x = 2,080,022.42 × 907,312.12 - Step 4: Simplify right side
1,386,681.53x = 1,887,229,548,605.95 - Step 5: Solve for x
x = 1,887,229,548,605.95/1,386,681.53 - Step 6: Final answer
x = 1,360,968.26
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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.