Finding the Fourth Proportional to 586,319.80, 879,479.70 and 143,087.80
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Solution
The fourth proportional to 586,319.80, 879,479.70 and 143,087.80 is: 214,631.70
Step by Step Solution
- Step 1: Write the proportion equation
586,319.80 : 879,479.70 = 143,087.80 : x - Step 2: Convert to fraction form
586,319.80/879,479.70 = 143,087.80/x - Step 3: Cross multiply
586,319.80x = 879,479.70 × 143,087.80 - Step 4: Simplify right side
586,319.80x = 125,842,815,417.66 - Step 5: Solve for x
x = 125,842,815,417.66/586,319.80 - Step 6: Final answer
x = 214,631.70
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1.5x scale
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.