Finding the Fourth Proportional to 622,998.10, 934,497.15 and 410,421.70
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Solution
The fourth proportional to 622,998.10, 934,497.15 and 410,421.70 is: 615,632.55
Step by Step Solution
- Step 1: Write the proportion equation
622,998.10 : 934,497.15 = 410,421.70 : x - Step 2: Convert to fraction form
622,998.10/934,497.15 = 410,421.70/x - Step 3: Cross multiply
622,998.10x = 934,497.15 × 410,421.70 - Step 4: Simplify right side
622,998.10x = 383,537,908,948.16 - Step 5: Solve for x
x = 383,537,908,948.16/622,998.10 - Step 6: Final answer
x = 615,632.55
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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.