Finding the Fourth Proportional to 746,903.70, 1,120,355.55 and 615,683.70
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Solution
The fourth proportional to 746,903.70, 1,120,355.55 and 615,683.70 is: 923,525.55
Step by Step Solution
- Step 1: Write the proportion equation
746,903.70 : 1,120,355.55 = 615,683.70 : x - Step 2: Convert to fraction form
746,903.70/1,120,355.55 = 615,683.70/x - Step 3: Cross multiply
746,903.70x = 1,120,355.55 × 615,683.70 - Step 4: Simplify right side
746,903.70x = 689,784,650,339.54 - Step 5: Solve for x
x = 689,784,650,339.54/746,903.70 - Step 6: Final answer
x = 923,525.55
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1.5x scale
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.