Finding the Fourth Proportional to 558,496.10, 770,700.28 and 310,122.65
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Solution
The fourth proportional to 558,496.10, 770,700.28 and 310,122.65 is: 427,955.74
Step by Step Solution
- Step 1: Write the proportion equation
558,496.10 : 770,700.28 = 310,122.65 : x - Step 2: Convert to fraction form
558,496.10/770,700.28 = 310,122.65/x - Step 3: Cross multiply
558,496.10x = 770,700.28 × 310,122.65 - Step 4: Simplify right side
558,496.10x = 239,011,607,785.23 - Step 5: Solve for x
x = 239,011,607,785.23/558,496.10 - Step 6: Final answer
x = 427,955.74
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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.