Finding the Fourth Proportional to 1,124,353.84, 1,683,828.30 and 643,122.76
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Solution
The fourth proportional to 1,124,353.84, 1,683,828.30 and 643,122.76 is: 963,138.35
Step by Step Solution
- Step 1: Write the proportion equation
1,124,353.84 : 1,683,828.30 = 643,122.76 : x - Step 2: Convert to fraction form
1,124,353.84/1,683,828.30 = 643,122.76/x - Step 3: Cross multiply
1,124,353.84x = 1,683,828.30 × 643,122.76 - Step 4: Simplify right side
1,124,353.84x = 1,082,908,303,662.11 - Step 5: Solve for x
x = 1,082,908,303,662.11/1,124,353.84 - Step 6: Final answer
x = 963,138.35
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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.