Finding the Fourth Proportional to 1,700,529.12, 2,347,706.16 and 1,128,345.12
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Solution
The fourth proportional to 1,700,529.12, 2,347,706.16 and 1,128,345.12 is: 1,557,763.85
Step by Step Solution
- Step 1: Write the proportion equation
1,700,529.12 : 2,347,706.16 = 1,128,345.12 : x - Step 2: Convert to fraction form
1,700,529.12/2,347,706.16 = 1,128,345.12/x - Step 3: Cross multiply
1,700,529.12x = 2,347,706.16 × 1,128,345.12 - Step 4: Simplify right side
1,700,529.12x = 2,649,022,788,829.94 - Step 5: Solve for x
x = 2,649,022,788,829.94/1,700,529.12 - Step 6: Final answer
x = 1,557,763.85
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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.