Finding the Fourth Proportional to 566,309.49, 781,512.62 and 311,666.55
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Solution
The fourth proportional to 566,309.49, 781,512.62 and 311,666.55 is: 430,102.88
Step by Step Solution
- Step 1: Write the proportion equation
566,309.49 : 781,512.62 = 311,666.55 : x - Step 2: Convert to fraction form
566,309.49/781,512.62 = 311,666.55/x - Step 3: Cross multiply
566,309.49x = 781,512.62 × 311,666.55 - Step 4: Simplify right side
566,309.49x = 243,571,340,498.53 - Step 5: Solve for x
x = 243,571,340,498.53/566,309.49 - Step 6: Final answer
x = 430,102.88
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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.