Finding the Fourth Proportional to 519,977.80, 779,966.70 and 348,735.70
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Solution
The fourth proportional to 519,977.80, 779,966.70 and 348,735.70 is: 523,103.55
Step by Step Solution
- Step 1: Write the proportion equation
519,977.80 : 779,966.70 = 348,735.70 : x - Step 2: Convert to fraction form
519,977.80/779,966.70 = 348,735.70/x - Step 3: Cross multiply
519,977.80x = 779,966.70 × 348,735.70 - Step 4: Simplify right side
519,977.80x = 272,002,233,101.19 - Step 5: Solve for x
x = 272,002,233,101.19/519,977.80 - Step 6: Final answer
x = 523,103.55
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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.