Finding the Fourth Proportional to 1,985,260.99, 2,976,439.69 and 636,655.95
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Solution
The fourth proportional to 1,985,260.99, 2,976,439.69 and 636,655.95 is: 954,518.35
Step by Step Solution
- Step 1: Write the proportion equation
1,985,260.99 : 2,976,439.69 = 636,655.95 : x - Step 2: Convert to fraction form
1,985,260.99/2,976,439.69 = 636,655.95/x - Step 3: Cross multiply
1,985,260.99x = 2,976,439.69 × 636,655.95 - Step 4: Simplify right side
1,985,260.99x = 1,894,968,038,454.66 - Step 5: Solve for x
x = 1,894,968,038,454.66/1,985,260.99 - Step 6: Final answer
x = 954,518.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.