Finding the Fourth Proportional to 1,139,482.99, 1,572,422.92 and 623,134.99
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Solution
The fourth proportional to 1,139,482.99, 1,572,422.92 and 623,134.99 is: 859,891.50
Step by Step Solution
- Step 1: Write the proportion equation
1,139,482.99 : 1,572,422.92 = 623,134.99 : x - Step 2: Convert to fraction form
1,139,482.99/1,572,422.92 = 623,134.99/x - Step 3: Cross multiply
1,139,482.99x = 1,572,422.92 × 623,134.99 - Step 4: Simplify right side
1,139,482.99x = 979,831,740,529.97 - Step 5: Solve for x
x = 979,831,740,529.97/1,139,482.99 - Step 6: Final answer
x = 859,891.50
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1.5x scale
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.