Finding the Fourth Proportional to 447,567.12, 617,641.20 and 246,363.12
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Solution
The fourth proportional to 447,567.12, 617,641.20 and 246,363.12 is: 339,980.32
Step by Step Solution
- Step 1: Write the proportion equation
447,567.12 : 617,641.20 = 246,363.12 : x - Step 2: Convert to fraction form
447,567.12/617,641.20 = 246,363.12/x - Step 3: Cross multiply
447,567.12x = 617,641.20 × 246,363.12 - Step 4: Simplify right side
447,567.12x = 152,164,013,072.54 - Step 5: Solve for x
x = 152,164,013,072.54/447,567.12 - Step 6: Final answer
x = 339,980.32
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1.5x scale
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.