Finding the Fourth Proportional to 1,438,688.84, 1,985,248.98 and 794,067.21
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Solution
The fourth proportional to 1,438,688.84, 1,985,248.98 and 794,067.21 is: 1,095,734.59
Step by Step Solution
- Step 1: Write the proportion equation
1,438,688.84 : 1,985,248.98 = 794,067.21 : x - Step 2: Convert to fraction form
1,438,688.84/1,985,248.98 = 794,067.21/x - Step 3: Cross multiply
1,438,688.84x = 1,985,248.98 × 794,067.21 - Step 4: Simplify right side
1,438,688.84x = 1,576,421,118,703.95 - Step 5: Solve for x
x = 1,576,421,118,703.95/1,438,688.84 - Step 6: Final answer
x = 1,095,734.59
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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.