Finding the Fourth Proportional to 577,178.40, 865,767.60 and 472,202.40
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Solution
The fourth proportional to 577,178.40, 865,767.60 and 472,202.40 is: 708,303.60
Step by Step Solution
- Step 1: Write the proportion equation
577,178.40 : 865,767.60 = 472,202.40 : x - Step 2: Convert to fraction form
577,178.40/865,767.60 = 472,202.40/x - Step 3: Cross multiply
577,178.40x = 865,767.60 × 472,202.40 - Step 4: Simplify right side
577,178.40x = 408,817,538,562.24 - Step 5: Solve for x
x = 408,817,538,562.24/577,178.40 - Step 6: Final answer
x = 708,303.60
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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.