Finding the Fourth Proportional to 860,283.12, 1,187,220.60 and 478,326
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Solution
The fourth proportional to 860,283.12, 1,187,220.60 and 478,326 is: 660,106.50
Step by Step Solution
- Step 1: Write the proportion equation
860,283.12 : 1,187,220.60 = 478,326 : x - Step 2: Convert to fraction form
860,283.12/1,187,220.60 = 478,326/x - Step 3: Cross multiply
860,283.12x = 1,187,220.60 × 478,326 - Step 4: Simplify right side
860,283.12x = 567,878,480,715.60 - Step 5: Solve for x
x = 567,878,480,715.60/860,283.12 - Step 6: Final answer
x = 660,106.50
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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.