Finding the Fourth Proportional to 623,393.36, 860,239.68 and 351,470.96
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Solution
The fourth proportional to 623,393.36, 860,239.68 and 351,470.96 is: 485,005.59
Step by Step Solution
- Step 1: Write the proportion equation
623,393.36 : 860,239.68 = 351,470.96 : x - Step 2: Convert to fraction form
623,393.36/860,239.68 = 351,470.96/x - Step 3: Cross multiply
623,393.36x = 860,239.68 × 351,470.96 - Step 4: Simplify right side
623,393.36x = 302,349,266,159.69 - Step 5: Solve for x
x = 302,349,266,159.69/623,393.36 - Step 6: Final answer
x = 485,005.59
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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.