Finding the Fourth Proportional to 1,863,206.01, 2,571,235.08 and 1,047,402.55
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Solution
The fourth proportional to 1,863,206.01, 2,571,235.08 and 1,047,402.55 is: 1,445,421.58
Step by Step Solution
- Step 1: Write the proportion equation
1,863,206.01 : 2,571,235.08 = 1,047,402.55 : x - Step 2: Convert to fraction form
1,863,206.01/2,571,235.08 = 1,047,402.55/x - Step 3: Cross multiply
1,863,206.01x = 2,571,235.08 × 1,047,402.55 - Step 4: Simplify right side
1,863,206.01x = 2,693,118,168,683.22 - Step 5: Solve for x
x = 2,693,118,168,683.22/1,863,206.01 - Step 6: Final answer
x = 1,445,421.58
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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.