Finding the Fourth Proportional to 913,631.84, 1,260,823.05 and 505,771.40
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Solution
The fourth proportional to 913,631.84, 1,260,823.05 and 505,771.40 is: 697,970.68
Step by Step Solution
- Step 1: Write the proportion equation
913,631.84 : 1,260,823.05 = 505,771.40 : x - Step 2: Convert to fraction form
913,631.84/1,260,823.05 = 505,771.40/x - Step 3: Cross multiply
913,631.84x = 1,260,823.05 × 505,771.40 - Step 4: Simplify right side
913,631.84x = 637,688,232,846.66 - Step 5: Solve for x
x = 637,688,232,846.66/913,631.84 - Step 6: Final answer
x = 697,970.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.