Finding the Fourth Proportional to 1,438,215.68, 1,984,724.16 and 793,641.60
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Solution
The fourth proportional to 1,438,215.68, 1,984,724.16 and 793,641.60 is: 1,095,217.97
Step by Step Solution
- Step 1: Write the proportion equation
1,438,215.68 : 1,984,724.16 = 793,641.60 : x - Step 2: Convert to fraction form
1,438,215.68/1,984,724.16 = 793,641.60/x - Step 3: Cross multiply
1,438,215.68x = 1,984,724.16 × 793,641.60 - Step 4: Simplify right side
1,438,215.68x = 1,575,159,657,901.06 - Step 5: Solve for x
x = 1,575,159,657,901.06/1,438,215.68 - Step 6: Final answer
x = 1,095,217.97
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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.