Finding the Fourth Proportional to 1,038,257.55, 1,554,761.93 and 828,305.55
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Solution
The fourth proportional to 1,038,257.55, 1,554,761.93 and 828,305.55 is: 1,240,364.62
Step by Step Solution
- Step 1: Write the proportion equation
1,038,257.55 : 1,554,761.93 = 828,305.55 : x - Step 2: Convert to fraction form
1,038,257.55/1,554,761.93 = 828,305.55/x - Step 3: Cross multiply
1,038,257.55x = 1,554,761.93 × 828,305.55 - Step 4: Simplify right side
1,038,257.55x = 1,287,817,931,406.18 - Step 5: Solve for x
x = 1,287,817,931,406.18/1,038,257.55 - Step 6: Final answer
x = 1,240,364.62
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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.