Finding the Fourth Proportional to 637,142.42, 879,239.88 and 346,759.79
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Solution
The fourth proportional to 637,142.42, 879,239.88 and 346,759.79 is: 478,519.43
Step by Step Solution
- Step 1: Write the proportion equation
637,142.42 : 879,239.88 = 346,759.79 : x - Step 2: Convert to fraction form
637,142.42/879,239.88 = 346,759.79/x - Step 3: Cross multiply
637,142.42x = 879,239.88 × 346,759.79 - Step 4: Simplify right side
637,142.42x = 304,885,031,752.23 - Step 5: Solve for x
x = 304,885,031,752.23/637,142.42 - Step 6: Final answer
x = 478,519.43
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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.