Finding the Fourth Proportional to 809,655.19, 1,117,422.68 and 470,123.44
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Solution
The fourth proportional to 809,655.19, 1,117,422.68 and 470,123.44 is: 648,827.55
Step by Step Solution
- Step 1: Write the proportion equation
809,655.19 : 1,117,422.68 = 470,123.44 : x - Step 2: Convert to fraction form
809,655.19/1,117,422.68 = 470,123.44/x - Step 3: Cross multiply
809,655.19x = 1,117,422.68 × 470,123.44 - Step 4: Simplify right side
809,655.19x = 525,326,594,255.62 - Step 5: Solve for x
x = 525,326,594,255.62/809,655.19 - Step 6: Final answer
x = 648,827.55
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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.