Finding the Fourth Proportional to 947,155.24, 1,421,257.74 and 386,146.36
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Solution
The fourth proportional to 947,155.24, 1,421,257.74 and 386,146.36 is: 579,433.53
Step by Step Solution
- Step 1: Write the proportion equation
947,155.24 : 1,421,257.74 = 386,146.36 : x - Step 2: Convert to fraction form
947,155.24/1,421,257.74 = 386,146.36/x - Step 3: Cross multiply
947,155.24x = 1,421,257.74 × 386,146.36 - Step 4: Simplify right side
947,155.24x = 548,813,502,922.83 - Step 5: Solve for x
x = 548,813,502,922.83/947,155.24 - Step 6: Final answer
x = 579,433.53
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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.