Finding the Fourth Proportional to 1,679,367.42, 2,317,527.12 and 915,421.02
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Solution
The fourth proportional to 1,679,367.42, 2,317,527.12 and 915,421.02 is: 1,263,281.05
Step by Step Solution
- Step 1: Write the proportion equation
1,679,367.42 : 2,317,527.12 = 915,421.02 : x - Step 2: Convert to fraction form
1,679,367.42/2,317,527.12 = 915,421.02/x - Step 3: Cross multiply
1,679,367.42x = 2,317,527.12 × 915,421.02 - Step 4: Simplify right side
1,679,367.42x = 2,121,513,040,068.06 - Step 5: Solve for x
x = 2,121,513,040,068.06/1,679,367.42 - Step 6: Final answer
x = 1,263,281.05
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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.