Finding the Fourth Proportional to 1,312,272, 1,810,935.36 and 708,660
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Solution
The fourth proportional to 1,312,272, 1,810,935.36 and 708,660 is: 977,950.80
Step by Step Solution
- Step 1: Write the proportion equation
1,312,272 : 1,810,935.36 = 708,660 : x - Step 2: Convert to fraction form
1,312,272/1,810,935.36 = 708,660/x - Step 3: Cross multiply
1,312,272x = 1,810,935.36 × 708,660 - Step 4: Simplify right side
1,312,272x = 1,283,337,452,217.60 - Step 5: Solve for x
x = 1,283,337,452,217.60/1,312,272 - Step 6: Final answer
x = 977,950.80
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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.