Finding the Fourth Proportional to 577,107.30, 865,660.95 and 437,139.30
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Solution
The fourth proportional to 577,107.30, 865,660.95 and 437,139.30 is: 655,708.95
Step by Step Solution
- Step 1: Write the proportion equation
577,107.30 : 865,660.95 = 437,139.30 : x - Step 2: Convert to fraction form
577,107.30/865,660.95 = 437,139.30/x - Step 3: Cross multiply
577,107.30x = 865,660.95 × 437,139.30 - Step 4: Simplify right side
577,107.30x = 378,414,421,720.34 - Step 5: Solve for x
x = 378,414,421,720.34/577,107.30 - Step 6: Final answer
x = 655,708.95
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Similar ratio
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1.5x scale
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.