Finding the Fourth Proportional to 879,909.98, 1,214,276.55 and 477,501.98
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Solution
The fourth proportional to 879,909.98, 1,214,276.55 and 477,501.98 is: 658,953.15
Step by Step Solution
- Step 1: Write the proportion equation
879,909.98 : 1,214,276.55 = 477,501.98 : x - Step 2: Convert to fraction form
879,909.98/1,214,276.55 = 477,501.98/x - Step 3: Cross multiply
879,909.98x = 1,214,276.55 × 477,501.98 - Step 4: Simplify right side
879,909.98x = 579,819,456,892.57 - Step 5: Solve for x
x = 579,819,456,892.57/879,909.98 - Step 6: Final answer
x = 658,953.15
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1.5x scale
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.