Finding the Fourth Proportional to 849,780.96, 1,275,459.84 and 429,352.08
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Solution
The fourth proportional to 849,780.96, 1,275,459.84 and 429,352.08 is: 644,426.46
Step by Step Solution
- Step 1: Write the proportion equation
849,780.96 : 1,275,459.84 = 429,352.08 : x - Step 2: Convert to fraction form
849,780.96/1,275,459.84 = 429,352.08/x - Step 3: Cross multiply
849,780.96x = 1,275,459.84 × 429,352.08 - Step 4: Simplify right side
849,780.96x = 547,621,335,260.47 - Step 5: Solve for x
x = 547,621,335,260.47/849,780.96 - Step 6: Final answer
x = 644,426.46
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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.