Finding the Fourth Proportional to 553,781.88, 764,219.30 and 299,133.06
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Solution
The fourth proportional to 553,781.88, 764,219.30 and 299,133.06 is: 412,803.79
Step by Step Solution
- Step 1: Write the proportion equation
553,781.88 : 764,219.30 = 299,133.06 : x - Step 2: Convert to fraction form
553,781.88/764,219.30 = 299,133.06/x - Step 3: Cross multiply
553,781.88x = 764,219.30 × 299,133.06 - Step 4: Simplify right side
553,781.88x = 228,603,257,720.06 - Step 5: Solve for x
x = 228,603,257,720.06/553,781.88 - Step 6: Final answer
x = 412,803.79
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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.