Finding the Fourth Proportional to 877,336.77, 1,316,005.09 and 478,313.09
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Solution
The fourth proportional to 877,336.77, 1,316,005.09 and 478,313.09 is: 717,469.60
Step by Step Solution
- Step 1: Write the proportion equation
877,336.77 : 1,316,005.09 = 478,313.09 : x - Step 2: Convert to fraction form
877,336.77/1,316,005.09 = 478,313.09/x - Step 3: Cross multiply
877,336.77x = 1,316,005.09 × 478,313.09 - Step 4: Simplify right side
877,336.77x = 629,462,461,053.63 - Step 5: Solve for x
x = 629,462,461,053.63/877,336.77 - Step 6: Final answer
x = 717,469.60
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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.