Finding the Fourth Proportional to 2,390,388.63, 3,298,618.80 and 1,302,656.91
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Solution
The fourth proportional to 2,390,388.63, 3,298,618.80 and 1,302,656.91 is: 1,797,602.50
Step by Step Solution
- Step 1: Write the proportion equation
2,390,388.63 : 3,298,618.80 = 1,302,656.91 : x - Step 2: Convert to fraction form
2,390,388.63/3,298,618.80 = 1,302,656.91/x - Step 3: Cross multiply
2,390,388.63x = 3,298,618.80 × 1,302,656.91 - Step 4: Simplify right side
2,390,388.63x = 4,296,968,573,275.91 - Step 5: Solve for x
x = 4,296,968,573,275.91/2,390,388.63 - Step 6: Final answer
x = 1,797,602.50
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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.