Finding the Fourth Proportional to 1,239,275.58, 1,710,262.50 and 774,410.23
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Solution
The fourth proportional to 1,239,275.58, 1,710,262.50 and 774,410.23 is: 1,068,724.99
Step by Step Solution
- Step 1: Write the proportion equation
1,239,275.58 : 1,710,262.50 = 774,410.23 : x - Step 2: Convert to fraction form
1,239,275.58/1,710,262.50 = 774,410.23/x - Step 3: Cross multiply
1,239,275.58x = 1,710,262.50 × 774,410.23 - Step 4: Simplify right side
1,239,275.58x = 1,324,444,775,985.38 - Step 5: Solve for x
x = 1,324,444,775,985.38/1,239,275.58 - Step 6: Final answer
x = 1,068,724.99
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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.