Finding the Fourth Proportional to 879,905.13, 1,214,269.08 and 477,497.13
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Solution
The fourth proportional to 879,905.13, 1,214,269.08 and 477,497.13 is: 658,946.04
Step by Step Solution
- Step 1: Write the proportion equation
879,905.13 : 1,214,269.08 = 477,497.13 : x - Step 2: Convert to fraction form
879,905.13/1,214,269.08 = 477,497.13/x - Step 3: Cross multiply
879,905.13x = 1,214,269.08 × 477,497.13 - Step 4: Simplify right side
879,905.13x = 579,810,000,747.74 - Step 5: Solve for x
x = 579,810,000,747.74/879,905.13 - Step 6: Final answer
x = 658,946.04
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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.