Finding the Fourth Proportional to 1,368,586.19, 1,888,484.12 and 756,656.30
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Solution
The fourth proportional to 1,368,586.19, 1,888,484.12 and 756,656.30 is: 1,044,094.57
Step by Step Solution
- Step 1: Write the proportion equation
1,368,586.19 : 1,888,484.12 = 756,656.30 : x - Step 2: Convert to fraction form
1,368,586.19/1,888,484.12 = 756,656.30/x - Step 3: Cross multiply
1,368,586.19x = 1,888,484.12 × 756,656.30 - Step 4: Simplify right side
1,368,586.19x = 1,428,933,410,623.35 - Step 5: Solve for x
x = 1,428,933,410,623.35/1,368,586.19 - Step 6: Final answer
x = 1,044,094.57
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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.