Finding the Fourth Proportional to 1,451,876.13, 2,178,257.27 and 742,402.53
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Solution
The fourth proportional to 1,451,876.13, 2,178,257.27 and 742,402.53 is: 1,113,830.35
Step by Step Solution
- Step 1: Write the proportion equation
1,451,876.13 : 2,178,257.27 = 742,402.53 : x - Step 2: Convert to fraction form
1,451,876.13/2,178,257.27 = 742,402.53/x - Step 3: Cross multiply
1,451,876.13x = 2,178,257.27 × 742,402.53 - Step 4: Simplify right side
1,451,876.13x = 1,617,143,704,526.88 - Step 5: Solve for x
x = 1,617,143,704,526.88/1,451,876.13 - Step 6: Final answer
x = 1,113,830.35
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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.