Finding the Fourth Proportional to 648,117.70, 972,176.55 and 630,621.70
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Solution
The fourth proportional to 648,117.70, 972,176.55 and 630,621.70 is: 945,932.55
Step by Step Solution
- Step 1: Write the proportion equation
648,117.70 : 972,176.55 = 630,621.70 : x - Step 2: Convert to fraction form
648,117.70/972,176.55 = 630,621.70/x - Step 3: Cross multiply
648,117.70x = 972,176.55 × 630,621.70 - Step 4: Simplify right side
648,117.70x = 613,075,628,661.14 - Step 5: Solve for x
x = 613,075,628,661.14/648,117.70 - Step 6: Final answer
x = 945,932.55
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Similar ratio
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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.