Finding the Fourth Proportional to 1,379,430.32, 1,903,613.64 and 767,622.44
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Solution
The fourth proportional to 1,379,430.32, 1,903,613.64 and 767,622.44 is: 1,059,318.86
Step by Step Solution
- Step 1: Write the proportion equation
1,379,430.32 : 1,903,613.64 = 767,622.44 : x - Step 2: Convert to fraction form
1,379,430.32/1,903,613.64 = 767,622.44/x - Step 3: Cross multiply
1,379,430.32x = 1,903,613.64 × 767,622.44 - Step 4: Simplify right side
1,379,430.32x = 1,461,256,547,154.08 - Step 5: Solve for x
x = 1,461,256,547,154.08/1,379,430.32 - Step 6: Final answer
x = 1,059,318.86
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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.