Finding the Fourth Proportional to 565,420.64, 780,285.36 and 310,777.76
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Solution
The fourth proportional to 565,420.64, 780,285.36 and 310,777.76 is: 428,875.99
Step by Step Solution
- Step 1: Write the proportion equation
565,420.64 : 780,285.36 = 310,777.76 : x - Step 2: Convert to fraction form
565,420.64/780,285.36 = 310,777.76/x - Step 3: Cross multiply
565,420.64x = 780,285.36 × 310,777.76 - Step 4: Simplify right side
565,420.64x = 242,495,336,341.59 - Step 5: Solve for x
x = 242,495,336,341.59/565,420.64 - Step 6: Final answer
x = 428,875.99
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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.