Finding the Fourth Proportional to 1,432,688.49, 1,977,067.98 and 788,108.31
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Solution
The fourth proportional to 1,432,688.49, 1,977,067.98 and 788,108.31 is: 1,087,566.29
Step by Step Solution
- Step 1: Write the proportion equation
1,432,688.49 : 1,977,067.98 = 788,108.31 : x - Step 2: Convert to fraction form
1,432,688.49/1,977,067.98 = 788,108.31/x - Step 3: Cross multiply
1,432,688.49x = 1,977,067.98 × 788,108.31 - Step 4: Simplify right side
1,432,688.49x = 1,558,143,704,472.91 - Step 5: Solve for x
x = 1,558,143,704,472.91/1,432,688.49 - Step 6: Final answer
x = 1,087,566.29
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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.