Finding the Fourth Proportional to 1,005,864.95, 1,387,988.65 and 576,163.19
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Solution
The fourth proportional to 1,005,864.95, 1,387,988.65 and 576,163.19 is: 795,045.07
Step by Step Solution
- Step 1: Write the proportion equation
1,005,864.95 : 1,387,988.65 = 576,163.19 : x - Step 2: Convert to fraction form
1,005,864.95/1,387,988.65 = 576,163.19/x - Step 3: Cross multiply
1,005,864.95x = 1,387,988.65 × 576,163.19 - Step 4: Simplify right side
1,005,864.95x = 799,707,968,267.79 - Step 5: Solve for x
x = 799,707,968,267.79/1,005,864.95 - Step 6: Final answer
x = 795,045.07
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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.