Finding the Fourth Proportional to 1,205,283.78, 1,663,312.03 and 661,470.17
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Solution
The fourth proportional to 1,205,283.78, 1,663,312.03 and 661,470.17 is: 912,840.03
Step by Step Solution
- Step 1: Write the proportion equation
1,205,283.78 : 1,663,312.03 = 661,470.17 : x - Step 2: Convert to fraction form
1,205,283.78/1,663,312.03 = 661,470.17/x - Step 3: Cross multiply
1,205,283.78x = 1,663,312.03 × 661,470.17 - Step 4: Simplify right side
1,205,283.78x = 1,100,231,281,276.91 - Step 5: Solve for x
x = 1,100,231,281,276.91/1,205,283.78 - Step 6: Final answer
x = 912,840.03
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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.