Finding the Fourth Proportional to 624,623.06, 861,980.09 and 338,143.13
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Solution
The fourth proportional to 624,623.06, 861,980.09 and 338,143.13 is: 466,637.66
Step by Step Solution
- Step 1: Write the proportion equation
624,623.06 : 861,980.09 = 338,143.13 : x - Step 2: Convert to fraction form
624,623.06/861,980.09 = 338,143.13/x - Step 3: Cross multiply
624,623.06x = 861,980.09 × 338,143.13 - Step 4: Simplify right side
624,623.06x = 291,472,645,630.28 - Step 5: Solve for x
x = 291,472,645,630.28/624,623.06 - Step 6: Final answer
x = 466,637.66
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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.