Finding the Fourth Proportional to 1,178,234.99, 1,767,490.91 and 420,184.23
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Solution
The fourth proportional to 1,178,234.99, 1,767,490.91 and 420,184.23 is: 630,325.70
Step by Step Solution
- Step 1: Write the proportion equation
1,178,234.99 : 1,767,490.91 = 420,184.23 : x - Step 2: Convert to fraction form
1,178,234.99/1,767,490.91 = 420,184.23/x - Step 3: Cross multiply
1,178,234.99x = 1,767,490.91 × 420,184.23 - Step 4: Simplify right side
1,178,234.99x = 742,671,799,897.03 - Step 5: Solve for x
x = 742,671,799,897.03/1,178,234.99 - Step 6: Final answer
x = 630,325.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.