Finding the Fourth Proportional to 1,115,726.78, 1,539,708.28 and 606,428.76
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Solution
The fourth proportional to 1,115,726.78, 1,539,708.28 and 606,428.76 is: 836,874.58
Step by Step Solution
- Step 1: Write the proportion equation
1,115,726.78 : 1,539,708.28 = 606,428.76 : x - Step 2: Convert to fraction form
1,115,726.78/1,539,708.28 = 606,428.76/x - Step 3: Cross multiply
1,115,726.78x = 1,539,708.28 × 606,428.76 - Step 4: Simplify right side
1,115,726.78x = 933,723,383,002.13 - Step 5: Solve for x
x = 933,723,383,002.13/1,115,726.78 - Step 6: Final answer
x = 836,874.58
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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.