Finding the Fourth Proportional to 1,326,051.12, 1,829,950.74 and 722,439.12
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Solution
The fourth proportional to 1,326,051.12, 1,829,950.74 and 722,439.12 is: 996,966.09
Step by Step Solution
- Step 1: Write the proportion equation
1,326,051.12 : 1,829,950.74 = 722,439.12 : x - Step 2: Convert to fraction form
1,326,051.12/1,829,950.74 = 722,439.12/x - Step 3: Cross multiply
1,326,051.12x = 1,829,950.74 × 722,439.12 - Step 4: Simplify right side
1,326,051.12x = 1,322,028,002,248.95 - Step 5: Solve for x
x = 1,322,028,002,248.95/1,326,051.12 - Step 6: Final answer
x = 996,966.09
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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.