Finding the Fourth Proportional to 1,038,235.80, 1,557,353.70 and 828,283.80
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Solution
The fourth proportional to 1,038,235.80, 1,557,353.70 and 828,283.80 is: 1,242,425.70
Step by Step Solution
- Step 1: Write the proportion equation
1,038,235.80 : 1,557,353.70 = 828,283.80 : x - Step 2: Convert to fraction form
1,038,235.80/1,557,353.70 = 828,283.80/x - Step 3: Cross multiply
1,038,235.80x = 1,557,353.70 × 828,283.80 - Step 4: Simplify right side
1,038,235.80x = 1,289,930,840,580.06 - Step 5: Solve for x
x = 1,289,930,840,580.06/1,038,235.80 - Step 6: Final answer
x = 1,242,425.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.