Finding the Fourth Proportional to 1,127,125.13, 1,555,438.14 and 674,416.13
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Solution
The fourth proportional to 1,127,125.13, 1,555,438.14 and 674,416.13 is: 930,697.52
Step by Step Solution
- Step 1: Write the proportion equation
1,127,125.13 : 1,555,438.14 = 674,416.13 : x - Step 2: Convert to fraction form
1,127,125.13/1,555,438.14 = 674,416.13/x - Step 3: Cross multiply
1,127,125.13x = 1,555,438.14 × 674,416.13 - Step 4: Simplify right side
1,127,125.13x = 1,049,012,563,056.01 - Step 5: Solve for x
x = 1,049,012,563,056.01/1,127,125.13 - Step 6: Final answer
x = 930,697.52
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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.