Finding the Fourth Proportional to 1,387,745.12, 1,915,408.32 and 903,467
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Solution
The fourth proportional to 1,387,745.12, 1,915,408.32 and 903,467 is: 1,246,992.83
Step by Step Solution
- Step 1: Write the proportion equation
1,387,745.12 : 1,915,408.32 = 903,467 : x - Step 2: Convert to fraction form
1,387,745.12/1,915,408.32 = 903,467/x - Step 3: Cross multiply
1,387,745.12x = 1,915,408.32 × 903,467 - Step 4: Simplify right side
1,387,745.12x = 1,730,508,208,645.44 - Step 5: Solve for x
x = 1,730,508,208,645.44/1,387,745.12 - Step 6: Final answer
x = 1,246,992.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.