Finding the Fourth Proportional to 1,219,072.98, 1,828,729.76 and 420,249.36
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Solution
The fourth proportional to 1,219,072.98, 1,828,729.76 and 420,249.36 is: 630,415.51
Step by Step Solution
- Step 1: Write the proportion equation
1,219,072.98 : 1,828,729.76 = 420,249.36 : x - Step 2: Convert to fraction form
1,219,072.98/1,828,729.76 = 420,249.36/x - Step 3: Cross multiply
1,219,072.98x = 1,828,729.76 × 420,249.36 - Step 4: Simplify right side
1,219,072.98x = 768,522,518,373.35 - Step 5: Solve for x
x = 768,522,518,373.35/1,219,072.98 - Step 6: Final answer
x = 630,415.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.