Finding the Fourth Proportional to 553,267.40, 829,901.10 and 385,305.80
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Solution
The fourth proportional to 553,267.40, 829,901.10 and 385,305.80 is: 577,958.70
Step by Step Solution
- Step 1: Write the proportion equation
553,267.40 : 829,901.10 = 385,305.80 : x - Step 2: Convert to fraction form
553,267.40/829,901.10 = 385,305.80/x - Step 3: Cross multiply
553,267.40x = 829,901.10 × 385,305.80 - Step 4: Simplify right side
553,267.40x = 319,765,707,256.38 - Step 5: Solve for x
x = 319,765,707,256.38/553,267.40 - Step 6: Final answer
x = 577,958.70
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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.