Finding the Fourth Proportional to 513,847.56, 770,421.01 and 260,639.79
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Solution
The fourth proportional to 513,847.56, 770,421.01 and 260,639.79 is: 390,781.99
Step by Step Solution
- Step 1: Write the proportion equation
513,847.56 : 770,421.01 = 260,639.79 : x - Step 2: Convert to fraction form
513,847.56/770,421.01 = 260,639.79/x - Step 3: Cross multiply
513,847.56x = 770,421.01 × 260,639.79 - Step 4: Simplify right side
513,847.56x = 200,802,369,547.99 - Step 5: Solve for x
x = 200,802,369,547.99/513,847.56 - Step 6: Final answer
x = 390,781.99
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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.