Finding the Fourth Proportional to 1,386,261.29, 2,078,501.94 and 577,206.15
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Solution
The fourth proportional to 1,386,261.29, 2,078,501.94 and 577,206.15 is: 865,438.66
Step by Step Solution
- Step 1: Write the proportion equation
1,386,261.29 : 2,078,501.94 = 577,206.15 : x - Step 2: Convert to fraction form
1,386,261.29/2,078,501.94 = 577,206.15/x - Step 3: Cross multiply
1,386,261.29x = 2,078,501.94 × 577,206.15 - Step 4: Simplify right side
1,386,261.29x = 1,199,724,102,554.93 - Step 5: Solve for x
x = 1,199,724,102,554.93/1,386,261.29 - Step 6: Final answer
x = 865,438.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.