Finding the Fourth Proportional to 1,316,680.80, 1,975,513.05 and 518,518.68
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Solution
The fourth proportional to 1,316,680.80, 1,975,513.05 and 518,518.68 is: 777,971.71
Step by Step Solution
- Step 1: Write the proportion equation
1,316,680.80 : 1,975,513.05 = 518,518.68 : x - Step 2: Convert to fraction form
1,316,680.80/1,975,513.05 = 518,518.68/x - Step 3: Cross multiply
1,316,680.80x = 1,975,513.05 × 518,518.68 - Step 4: Simplify right side
1,316,680.80x = 1,024,340,419,008.77 - Step 5: Solve for x
x = 1,024,340,419,008.77/1,316,680.80 - Step 6: Final answer
x = 777,971.71
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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.