Finding the Fourth Proportional to 860,605.41, 1,291,083.07 and 299,683.65
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Solution
The fourth proportional to 860,605.41, 1,291,083.07 and 299,683.65 is: 449,586.39
Step by Step Solution
- Step 1: Write the proportion equation
860,605.41 : 1,291,083.07 = 299,683.65 : x - Step 2: Convert to fraction form
860,605.41/1,291,083.07 = 299,683.65/x - Step 3: Cross multiply
860,605.41x = 1,291,083.07 × 299,683.65 - Step 4: Simplify right side
860,605.41x = 386,916,479,666.18 - Step 5: Solve for x
x = 386,916,479,666.18/860,605.41 - Step 6: Final answer
x = 449,586.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.