Finding the Fourth Proportional to 640,964.80, 884,495.63 and 350,519.05
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Solution
The fourth proportional to 640,964.80, 884,495.63 and 350,519.05 is: 483,696.71
Step by Step Solution
- Step 1: Write the proportion equation
640,964.80 : 884,495.63 = 350,519.05 : x - Step 2: Convert to fraction form
640,964.80/884,495.63 = 350,519.05/x - Step 3: Cross multiply
640,964.80x = 884,495.63 × 350,519.05 - Step 4: Simplify right side
640,964.80x = 310,032,564,963.38 - Step 5: Solve for x
x = 310,032,564,963.38/640,964.80 - Step 6: Final answer
x = 483,696.71
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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.