Finding the Fourth Proportional to 1,280,649.79, 1,767,297.32 and 707,689.95
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Solution
The fourth proportional to 1,280,649.79, 1,767,297.32 and 707,689.95 is: 976,612.46
Step by Step Solution
- Step 1: Write the proportion equation
1,280,649.79 : 1,767,297.32 = 707,689.95 : x - Step 2: Convert to fraction form
1,280,649.79/1,767,297.32 = 707,689.95/x - Step 3: Cross multiply
1,280,649.79x = 1,767,297.32 × 707,689.95 - Step 4: Simplify right side
1,280,649.79x = 1,250,698,539,651.00 - Step 5: Solve for x
x = 1,250,698,539,651.00/1,280,649.79 - Step 6: Final answer
x = 976,612.46
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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.