Finding the Fourth Proportional to 443,646.65, 611,515.13 and 346,681.99
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Solution
The fourth proportional to 443,646.65, 611,515.13 and 346,681.99 is: 477,860.66
Step by Step Solution
- Step 1: Write the proportion equation
443,646.65 : 611,515.13 = 346,681.99 : x - Step 2: Convert to fraction form
443,646.65/611,515.13 = 346,681.99/x - Step 3: Cross multiply
443,646.65x = 611,515.13 × 346,681.99 - Step 4: Simplify right side
443,646.65x = 212,001,279,975.35 - Step 5: Solve for x
x = 212,001,279,975.35/443,646.65 - Step 6: Final answer
x = 477,860.66
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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.