Finding the Fourth Proportional to 1,134,985.39, 1,566,201.36 and 638,343.66
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Solution
The fourth proportional to 1,134,985.39, 1,566,201.36 and 638,343.66 is: 880,870.11
Step by Step Solution
- Step 1: Write the proportion equation
1,134,985.39 : 1,566,201.36 = 638,343.66 : x - Step 2: Convert to fraction form
1,134,985.39/1,566,201.36 = 638,343.66/x - Step 3: Cross multiply
1,134,985.39x = 1,566,201.36 × 638,343.66 - Step 4: Simplify right side
1,134,985.39x = 999,774,708,439.38 - Step 5: Solve for x
x = 999,774,708,439.38/1,134,985.39 - Step 6: Final answer
x = 880,870.11
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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.