Finding the Fourth Proportional to 664,265.25, 916,681.19 and 377,784.99
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Solution
The fourth proportional to 664,265.25, 916,681.19 and 377,784.99 is: 521,340.52
Step by Step Solution
- Step 1: Write the proportion equation
664,265.25 : 916,681.19 = 377,784.99 : x - Step 2: Convert to fraction form
664,265.25/916,681.19 = 377,784.99/x - Step 3: Cross multiply
664,265.25x = 916,681.19 × 377,784.99 - Step 4: Simplify right side
664,265.25x = 346,308,392,308.41 - Step 5: Solve for x
x = 346,308,392,308.41/664,265.25 - Step 6: Final answer
x = 521,340.52
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1.5x scale
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.