Finding the Fourth Proportional to 979,689.94, 1,351,966.68 and 549,969.95
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Solution
The fourth proportional to 979,689.94, 1,351,966.68 and 549,969.95 is: 758,955.48
Step by Step Solution
- Step 1: Write the proportion equation
979,689.94 : 1,351,966.68 = 549,969.95 : x - Step 2: Convert to fraction form
979,689.94/1,351,966.68 = 549,969.95/x - Step 3: Cross multiply
979,689.94x = 1,351,966.68 × 549,969.95 - Step 4: Simplify right side
979,689.94x = 743,541,050,781.18 - Step 5: Solve for x
x = 743,541,050,781.18/979,689.94 - Step 6: Final answer
x = 758,955.48
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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.