Finding the Fourth Proportional to 411,277.80, 615,534.30 and 286,861.80
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Solution
The fourth proportional to 411,277.80, 615,534.30 and 286,861.80 is: 429,328.49
Step by Step Solution
- Step 1: Write the proportion equation
411,277.80 : 615,534.30 = 286,861.80 : x - Step 2: Convert to fraction form
411,277.80/615,534.30 = 286,861.80/x - Step 3: Cross multiply
411,277.80x = 615,534.30 × 286,861.80 - Step 4: Simplify right side
411,277.80x = 176,573,277,259.74 - Step 5: Solve for x
x = 176,573,277,259.74/411,277.80 - Step 6: Final answer
x = 429,328.49
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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.