Finding the Fourth Proportional to 577,879.80, 865,130.10 and 411,991.80
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Solution
The fourth proportional to 577,879.80, 865,130.10 and 411,991.80 is: 616,783.12
Step by Step Solution
- Step 1: Write the proportion equation
577,879.80 : 865,130.10 = 411,991.80 : x - Step 2: Convert to fraction form
577,879.80/865,130.10 = 411,991.80/x - Step 3: Cross multiply
577,879.80x = 865,130.10 × 411,991.80 - Step 4: Simplify right side
577,879.80x = 356,426,507,133.18 - Step 5: Solve for x
x = 356,426,507,133.18/577,879.80 - Step 6: Final answer
x = 616,783.12
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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.