Finding the Fourth Proportional to 520,812.79, 781,213.61 and 395,224.52
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Solution
The fourth proportional to 520,812.79, 781,213.61 and 395,224.52 is: 592,832.55
Step by Step Solution
- Step 1: Write the proportion equation
520,812.79 : 781,213.61 = 395,224.52 : x - Step 2: Convert to fraction form
520,812.79/781,213.61 = 395,224.52/x - Step 3: Cross multiply
520,812.79x = 781,213.61 × 395,224.52 - Step 4: Simplify right side
520,812.79x = 308,754,771,111.71 - Step 5: Solve for x
x = 308,754,771,111.71/520,812.79 - Step 6: Final answer
x = 592,832.55
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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.