Finding the Fourth Proportional to 815,283.12, 1,125,053.16 and 452,730.08
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Solution
The fourth proportional to 815,283.12, 1,125,053.16 and 452,730.08 is: 624,746.66
Step by Step Solution
- Step 1: Write the proportion equation
815,283.12 : 1,125,053.16 = 452,730.08 : x - Step 2: Convert to fraction form
815,283.12/1,125,053.16 = 452,730.08/x - Step 3: Cross multiply
815,283.12x = 1,125,053.16 × 452,730.08 - Step 4: Simplify right side
815,283.12x = 509,345,407,131.05 - Step 5: Solve for x
x = 509,345,407,131.05/815,283.12 - Step 6: Final answer
x = 624,746.66
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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.