Finding the Fourth Proportional to 516,430.79, 712,470.47 and 298,599.65
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Solution
The fourth proportional to 516,430.79, 712,470.47 and 298,599.65 is: 411,949.55
Step by Step Solution
- Step 1: Write the proportion equation
516,430.79 : 712,470.47 = 298,599.65 : x - Step 2: Convert to fraction form
516,430.79/712,470.47 = 298,599.65/x - Step 3: Cross multiply
516,430.79x = 712,470.47 × 298,599.65 - Step 4: Simplify right side
516,430.79x = 212,743,430,593.75 - Step 5: Solve for x
x = 212,743,430,593.75/516,430.79 - Step 6: Final answer
x = 411,949.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.