Finding the Fourth Proportional to 766,355.80, 1,149,533.70 and 434,579.80
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Solution
The fourth proportional to 766,355.80, 1,149,533.70 and 434,579.80 is: 651,869.70
Step by Step Solution
- Step 1: Write the proportion equation
766,355.80 : 1,149,533.70 = 434,579.80 : x - Step 2: Convert to fraction form
766,355.80/1,149,533.70 = 434,579.80/x - Step 3: Cross multiply
766,355.80x = 1,149,533.70 × 434,579.80 - Step 4: Simplify right side
766,355.80x = 499,564,125,439.26 - Step 5: Solve for x
x = 499,564,125,439.26/766,355.80 - Step 6: Final answer
x = 651,869.70
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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.