Finding the Fourth Proportional to 1,012,115.08, 1,396,724.34 and 553,230.28
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Solution
The fourth proportional to 1,012,115.08, 1,396,724.34 and 553,230.28 is: 763,460.81
Step by Step Solution
- Step 1: Write the proportion equation
1,012,115.08 : 1,396,724.34 = 553,230.28 : x - Step 2: Convert to fraction form
1,012,115.08/1,396,724.34 = 553,230.28/x - Step 3: Cross multiply
1,012,115.08x = 1,396,724.34 × 553,230.28 - Step 4: Simplify right side
1,012,115.08x = 772,710,197,701.02 - Step 5: Solve for x
x = 772,710,197,701.02/1,012,115.08 - Step 6: Final answer
x = 763,460.81
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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.