Finding the Fourth Proportional to 1,029,867.36, 1,421,301.12 and 571,125.60
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Solution
The fourth proportional to 1,029,867.36, 1,421,301.12 and 571,125.60 is: 788,200.00
Step by Step Solution
- Step 1: Write the proportion equation
1,029,867.36 : 1,421,301.12 = 571,125.60 : x - Step 2: Convert to fraction form
1,029,867.36/1,421,301.12 = 571,125.60/x - Step 3: Cross multiply
1,029,867.36x = 1,421,301.12 × 571,125.60 - Step 4: Simplify right side
1,029,867.36x = 811,741,454,940.67 - Step 5: Solve for x
x = 811,741,454,940.67/1,029,867.36 - Step 6: Final answer
x = 788,200.00
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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.