Finding the Fourth Proportional to 1,014,815.99, 1,400,447.76 and 555,920.56
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Solution
The fourth proportional to 1,014,815.99, 1,400,447.76 and 555,920.56 is: 767,171.30
Step by Step Solution
- Step 1: Write the proportion equation
1,014,815.99 : 1,400,447.76 = 555,920.56 : x - Step 2: Convert to fraction form
1,014,815.99/1,400,447.76 = 555,920.56/x - Step 3: Cross multiply
1,014,815.99x = 1,400,447.76 × 555,920.56 - Step 4: Simplify right side
1,014,815.99x = 778,537,702,989.95 - Step 5: Solve for x
x = 778,537,702,989.95/1,014,815.99 - Step 6: Final answer
x = 767,171.30
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1.5x scale
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.