Finding the Fourth Proportional to 1,289,044.94, 1,778,894.56 and 708,258.74
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Solution
The fourth proportional to 1,289,044.94, 1,778,894.56 and 708,258.74 is: 977,403.95
Step by Step Solution
- Step 1: Write the proportion equation
1,289,044.94 : 1,778,894.56 = 708,258.74 : x - Step 2: Convert to fraction form
1,289,044.94/1,778,894.56 = 708,258.74/x - Step 3: Cross multiply
1,289,044.94x = 1,778,894.56 × 708,258.74 - Step 4: Simplify right side
1,289,044.94x = 1,259,917,611,649.31 - Step 5: Solve for x
x = 1,259,917,611,649.31/1,289,044.94 - Step 6: Final answer
x = 977,403.95
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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.