Finding the Fourth Proportional to 1,680,737.60, 2,319,332.64 and 916,784.96
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Solution
The fourth proportional to 1,680,737.60, 2,319,332.64 and 916,784.96 is: 1,265,116.74
Step by Step Solution
- Step 1: Write the proportion equation
1,680,737.60 : 2,319,332.64 = 916,784.96 : x - Step 2: Convert to fraction form
1,680,737.60/2,319,332.64 = 916,784.96/x - Step 3: Cross multiply
1,680,737.60x = 2,319,332.64 × 916,784.96 - Step 4: Simplify right side
1,680,737.60x = 2,126,329,281,589.09 - Step 5: Solve for x
x = 2,126,329,281,589.09/1,680,737.60 - Step 6: Final answer
x = 1,265,116.74
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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.