Finding the Fourth Proportional to 1,631,427.30, 2,447,140.95 and 686,643.30
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Solution
The fourth proportional to 1,631,427.30, 2,447,140.95 and 686,643.30 is: 1,029,964.95
Step by Step Solution
- Step 1: Write the proportion equation
1,631,427.30 : 2,447,140.95 = 686,643.30 : x - Step 2: Convert to fraction form
1,631,427.30/2,447,140.95 = 686,643.30/x - Step 3: Cross multiply
1,631,427.30x = 2,447,140.95 × 686,643.30 - Step 4: Simplify right side
1,631,427.30x = 1,680,312,937,473.14 - Step 5: Solve for x
x = 1,680,312,937,473.14/1,631,427.30 - Step 6: Final answer
x = 1,029,964.95
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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.