Finding the Fourth Proportional to 405,233.79, 607,307.35 and 315,385.00
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Solution
The fourth proportional to 405,233.79, 607,307.35 and 315,385.00 is: 472,654.63
Step by Step Solution
- Step 1: Write the proportion equation
405,233.79 : 607,307.35 = 315,385.00 : x - Step 2: Convert to fraction form
405,233.79/607,307.35 = 315,385.00/x - Step 3: Cross multiply
405,233.79x = 607,307.35 × 315,385.00 - Step 4: Simplify right side
405,233.79x = 191,535,623,966.29 - Step 5: Solve for x
x = 191,535,623,966.29/405,233.79 - Step 6: Final answer
x = 472,654.63
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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.