Finding the Fourth Proportional to 2,167,314.90, 2,988,830.70 and 1,296,007.70
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Solution
The fourth proportional to 2,167,314.90, 2,988,830.70 and 1,296,007.70 is: 1,787,256.48
Step by Step Solution
- Step 1: Write the proportion equation
2,167,314.90 : 2,988,830.70 = 1,296,007.70 : x - Step 2: Convert to fraction form
2,167,314.90/2,988,830.70 = 1,296,007.70/x - Step 3: Cross multiply
2,167,314.90x = 2,988,830.70 × 1,296,007.70 - Step 4: Simplify right side
2,167,314.90x = 3,873,547,589,492.26 - Step 5: Solve for x
x = 3,873,547,589,492.26/2,167,314.90 - Step 6: Final answer
x = 1,787,256.48
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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.