Finding the Fourth Proportional to 4,579,936.20, 6,869,904.30 and 2,312,454.60
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Solution
The fourth proportional to 4,579,936.20, 6,869,904.30 and 2,312,454.60 is: 3,468,681.90
Step by Step Solution
- Step 1: Write the proportion equation
4,579,936.20 : 6,869,904.30 = 2,312,454.60 : x - Step 2: Convert to fraction form
4,579,936.20/6,869,904.30 = 2,312,454.60/x - Step 3: Cross multiply
4,579,936.20x = 6,869,904.30 × 2,312,454.60 - Step 4: Simplify right side
4,579,936.20x = 15,886,341,800,094.78 - Step 5: Solve for x
x = 15,886,341,800,094.78/4,579,936.20 - Step 6: Final answer
x = 3,468,681.90
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Double scale
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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.