Finding the Fourth Proportional to 809,353.08, 1,116,733.98 and 469,639.08
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Solution
The fourth proportional to 809,353.08, 1,116,733.98 and 469,639.08 is: 648,001.39
Step by Step Solution
- Step 1: Write the proportion equation
809,353.08 : 1,116,733.98 = 469,639.08 : x - Step 2: Convert to fraction form
809,353.08/1,116,733.98 = 469,639.08/x - Step 3: Cross multiply
809,353.08x = 1,116,733.98 × 469,639.08 - Step 4: Simplify right side
809,353.08x = 524,461,918,971.94 - Step 5: Solve for x
x = 524,461,918,971.94/809,353.08 - Step 6: Final answer
x = 648,001.39
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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.